56720132 has 12 divisors (see below), whose sum is σ = 113440320. Its totient is φ = 24308616.

The previous prime is 56720113. The next prime is 56720159. The reversal of 56720132 is 23102765.

56720132 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

56720132 is an admirable number.

56720132 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1012832 + ... + 1012887.

It is an arithmetic number, because the mean of its divisors is an integer number (9453360).

Almost surely, 2^56720132 is an apocalyptic number.

It is an amenable number.

56720132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56720132 is a wasteful number, since it uses less digits than its factorization.

56720132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025730 (or 2025728 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 56720132 is about 7531.2769169643. The cubic root of 56720132 is about 384.2192125811.

Adding to 56720132 its reverse (23102765), we get a palindrome (79822897).

The spelling of 56720132 in words is "fifty-six million, seven hundred twenty thousand, one hundred thirty-two".