57568728 has 48 divisors (see below), whose sum is σ = 167422680. Its totient is φ = 16447872.

The previous prime is 57568711. The next prime is 57568729. The reversal of 57568728 is 82786575.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57568729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23301 + ... + 25652.

Almost surely, 2^57568728 is an apocalyptic number.

It is an amenable number.

57568728 is an abundant number, since it is smaller than the sum of its proper divisors (109853952).

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

57568728 is a wasteful number, since it uses less digits than its factorization.

57568728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48976 (or 48965 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 57568728 is about 7587.4058808001. The cubic root of 57568728 is about 386.1258504864.

The spelling of 57568728 in words is "fifty-seven million, five hundred sixty-eight thousand, seven hundred twenty-eight".