50997621850 has 24 divisors (see below), whose sum is σ = 108406374048. Its totient is φ = 17484898800.

The previous prime is 50997621847. The next prime is 50997621889. The reversal of 50997621850 is 5812679905.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72853396 + ... + 72854095.

It is an arithmetic number, because the mean of its divisors is an integer number (4516932252).

Almost surely, 2^50997621850 is an apocalyptic number.

50997621850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50997621850 is an abundant number, since it is smaller than the sum of its proper divisors (57408752198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50997621850 is a wasteful number, since it uses less digits than its factorization.

50997621850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145707510 (or 145707505 counting only the distinct ones).

The product of its (nonzero) digits is 1360800, while the sum is 52.

The spelling of 50997621850 in words is "fifty billion, nine hundred ninety-seven million, six hundred twenty-one thousand, eight hundred fifty".