50351397525 has 96 divisors (see below), whose sum is σ = 108668461440. Its totient is φ = 22534848000.

The previous prime is 50351397517. The next prime is 50351397559. The reversal of 50351397525 is 52579315305.

50351397525 is a `hidden beast` number, since 5 + 0 + 35 + 1 + 3 + 97 + 525 = 666.

It is not a de Polignac number, because 50351397525 - 2³ = 50351397517 is a prime.

It is a super-2 number, since 2×50351397525² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 164296 + ... + 357345.

It is an arithmetic number, because the mean of its divisors is an integer number (1131963140).

Almost surely, 2^50351397525 is an apocalyptic number.

50351397525 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

50351397525 is an abundant number, since it is smaller than the sum of its proper divisors (58317063915).

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

50351397525 is a wasteful number, since it uses less digits than its factorization.

50351397525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521684 (or 521673 counting only the distinct ones).

The product of its (nonzero) digits is 708750, while the sum is 45.

The spelling of 50351397525 in words is "fifty billion, three hundred fifty-one million, three hundred ninety-seven thousand, five hundred twenty-five".