56515016572 has 24 divisors (see below), whose sum is σ = 113082458720. Its totient is φ = 24209487360.

The previous prime is 56515016539. The next prime is 56515016609. The reversal of 56515016572 is 27561051565.

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, 406497 + ... + 527512.

Almost surely, 2^56515016572 is an apocalyptic number.

It is an amenable number.

56515016572 is an abundant number, since it is smaller than the sum of its proper divisors (56567442148).

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

56515016572 is a wasteful number, since it uses less digits than its factorization.

56515016572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936181 (or 936179 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 56515016572 in words is "fifty-six billion, five hundred fifteen million, sixteen thousand, five hundred seventy-two".