Some of you guys seem to doubt OP, but he may actually have $500,000. It isn't unrealistic for a young person to inherit a lot of money and want to know what to do with it. Other scenarios are possible as well. OP is probably young though because someone with that kind of money would have thought about that kind of thing years ago. If OP is old, well, you always have to start somewhere. Since OP wasn't specific, I will assume that the $500,000 is his entire net worth in addition to a house that OP lives in and he has paid off completely. If I am wrong then correct me. If you do have any debts then it would be prudent to eliminate those first.
If I were you I'd invest from $62,500 to $125,000 in Bitcoin. You are on a Bitcoin forum so I'm assuming you probably know a thing or two about Bitcoin and how it works. Since you are asking about investing I wouldn't recommend investing in altcoins or trading. If you want to you probably could look into it at least and see if it is for you, but be careful lots of people probably lose money or win less than if they just bought and held.
The rest of your money I wouldn't even put into cryptocurrency at all. While it may be awesome to be super rich it would suck 100 times more to lose everything on one investment. I believe Bitcoin will be profitable so I definitely put like 12.5% of my net worth in it. However, sometimes life can be a bitch and unexpected things happen.
If you haven't started a Roth IRA you should probably do it. Super cool way to collect capital gains with 0% tax. You should also consider a health savings account or 401K if you have a source of income and assuming you are in a higher tax bracket.
With $200,000ish I would put that into a brokerage account and put a majority of it into something safe such as S&P 500 or Dow Jones. There are some pretty cool ETFs you can find out there. With that $200,000 alone it is safe to say you can make anywhere between $14,000 to $20,000 a year on average which is enough to live comfortably assuming you have a house.
With the remaining $175,000 I would invest in some more risky things such as stocks, possibly some real estate, collectibles, be an angel investor, or start a business. You could even be generous and give some to me if you'd like.
There are a lot of things you can do with that kind of money. The sky is the limit!