56538168 has 32 divisors (see below), whose sum is σ = 146221200. Its totient is φ = 18195968.

The previous prime is 56538137. The next prime is 56538173. The reversal of 56538168 is 86183565.

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, 39921 + ... + 41312.

Almost surely, 2^56538168 is an apocalyptic number.

56538168 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

56538168 is an abundant number, since it is smaller than the sum of its proper divisors (89683032).

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

56538168 is a wasteful number, since it uses less digits than its factorization.

56538168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81271 (or 81267 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 56538168 is about 7519.1866581433. The cubic root of 56538168 is about 383.8079008787.

The spelling of 56538168 in words is "fifty-six million, five hundred thirty-eight thousand, one hundred sixty-eight".