$50 Million? Split it into five groups.
$10 Million to various Savings Accounts, where the only purpose is to generate Interest year over year.
$10 Million, split into tiers by expected length, to invest in Index Funds. Also probably 401k.
$10 Million in various foreign currencies, because this is the Trump Age and anything is possible.
$10 Million for charity, family, and one good super high donation to my local public radio channel just to see how they react.
$10 Million for immediate expenses such as buying a humble home, buying a Tesla, and maybe starting to eat out once a week instead of once a month.