50221666850 has 12 divisors (see below), whose sum is σ = 93412300434. Its totient is φ = 20088666720.

The previous prime is 50221666811. The next prime is 50221666903. The reversal of 50221666850 is 5866612205.

It can be written as a sum of positive squares in 3 ways, for example, as 38438347249 + 11783319601 = 196057^2 + 108551^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50221666798 and 50221666807.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 502216619 + ... + 502216718.

Almost surely, 2^50221666850 is an apocalyptic number.

50221666850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50221666850 is a deficient number, since it is larger than the sum of its proper divisors (43190633584).

50221666850 is a wasteful number, since it uses less digits than its factorization.

50221666850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004433349 (or 1004433344 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 50221666850 in words is "fifty billion, two hundred twenty-one million, six hundred sixty-six thousand, eight hundred fifty".