56724732 has 48 divisors (see below), whose sum is σ = 147525280. Its totient is φ = 18849024.

The previous prime is 56724719. The next prime is 56724749. The reversal of 56724732 is 23742765.

It is a happy number.

56724732 is a `hidden beast` number, since 567 + 24 + 73 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46158 + ... + 47370.

Almost surely, 2^56724732 is an apocalyptic number.

It is an amenable number.

56724732 is an abundant number, since it is smaller than the sum of its proper divisors (90800548).

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

56724732 is a wasteful number, since it uses less digits than its factorization.

56724732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1651 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 56724732 is about 7531.5823038721. The cubic root of 56724732 is about 384.2295990203.

It can be divided in two parts, 5672 and 4732, that added together give a square (10404 = 102²).

The spelling of 56724732 in words is "fifty-six million, seven hundred twenty-four thousand, seven hundred thirty-two".