57538828 has 12 divisors (see below), whose sum is σ = 100822792. Its totient is φ = 28732320.

The previous prime is 57538823. The next prime is 57538841. The reversal of 57538828 is 82883575.

It is a super-2 number, since 2×57538828² = 6621433455227168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57538823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5625 + ... + 12112.

Almost surely, 2^57538828 is an apocalyptic number.

It is an amenable number.

57538828 is a deficient number, since it is larger than the sum of its proper divisors (43283964).

57538828 is a wasteful number, since it uses less digits than its factorization.

57538828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18552 (or 18550 counting only the distinct ones).

The product of its digits is 537600, while the sum is 46.

The square root of 57538828 is about 7585.4352544861. The cubic root of 57538828 is about 386.0589903311.

The spelling of 57538828 in words is "fifty-seven million, five hundred thirty-eight thousand, eight hundred twenty-eight".