56520772 has 24 divisors (see below), whose sum is σ = 123318720. Its totient is φ = 22020960.

The previous prime is 56520749. The next prime is 56520799. The reversal of 56520772 is 27702565.

It is a happy 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, 91447 + ... + 92062.

It is an arithmetic number, because the mean of its divisors is an integer number (5138280).

Almost surely, 2^56520772 is an apocalyptic number.

It is an amenable number.

56520772 is an abundant number, since it is smaller than the sum of its proper divisors (66797948).

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

56520772 is a wasteful number, since it uses less digits than its factorization.

56520772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183531 (or 183529 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 56520772 is about 7518.0297950992. The cubic root of 56520772 is about 383.7685327410.

The spelling of 56520772 in words is "fifty-six million, five hundred twenty thousand, seven hundred seventy-two".