56251573212 has 24 divisors (see below), whose sum is σ = 131289861136. Its totient is φ = 18745354368.

The previous prime is 56251573199. The next prime is 56251573283. The reversal of 56251573212 is 21237515265.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600793 + ... + 688080.

Almost surely, 2^56251573212 is an apocalyptic number.

It is an amenable number.

56251573212 is an abundant number, since it is smaller than the sum of its proper divisors (75038287924).

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

56251573212 is a wasteful number, since it uses less digits than its factorization.

56251573212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292517 (or 1292515 counting only the distinct ones).

The product of its digits is 126000, while the sum is 39.

The spelling of 56251573212 in words is "fifty-six billion, two hundred fifty-one million, five hundred seventy-three thousand, two hundred twelve".