56752728 has 32 divisors (see below), whose sum is σ = 142259760. Its totient is φ = 18867200.

The previous prime is 56752711. The next prime is 56752741. The reversal of 56752728 is 82725765.

It is a self number, because there is not a number n which added to its sum of digits gives 56752728.

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, 6676 + ... + 12572.

Almost surely, 2^56752728 is an apocalyptic number.

It is an amenable number.

56752728 is an abundant number, since it is smaller than the sum of its proper divisors (85507032).

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

56752728 is a wasteful number, since it uses less digits than its factorization.

56752728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307 (or 6303 counting only the distinct ones).

The product of its digits is 235200, while the sum is 42.

The square root of 56752728 is about 7533.4406482032. The cubic root of 56752728 is about 384.2927996872.

The spelling of 56752728 in words is "fifty-six million, seven hundred fifty-two thousand, seven hundred twenty-eight".