50917019904 has 135 divisors (see below), whose sum is σ = 151922291367. Its totient is φ = 16961508864.

The previous prime is 50917019837. The next prime is 50917019939. The reversal of 50917019904 is 40991071905.

The square root of 50917019904 is 225648.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 50917019904.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 32492529 + ... + 32494095.

Almost surely, 2^50917019904 is an apocalyptic number.

50917019904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

50917019904 is the 225648-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50917019904

50917019904 is an abundant number, since it is smaller than the sum of its proper divisors (101005271463).

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

50917019904 is an frugal number, since it uses more digits than its factorization.

50917019904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 1572 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 45.

The spelling of 50917019904 in words is "fifty billion, nine hundred seventeen million, nineteen thousand, nine hundred four".