56138178 has 32 divisors (see below), whose sum is σ = 114939072. Its totient is φ = 18273600.

The previous prime is 56138149. The next prime is 56138189. The reversal of 56138178 is 87183165.

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, 59188 + ... + 60128.

It is an arithmetic number, because the mean of its divisors is an integer number (3591846).

Almost surely, 2^56138178 is an apocalyptic number.

56138178 is an abundant number, since it is smaller than the sum of its proper divisors (58800894).

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

56138178 is a wasteful number, since it uses less digits than its factorization.

56138178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170.

The product of its digits is 40320, while the sum is 39.

The square root of 56138178 is about 7492.5414913766. The cubic root of 56138178 is about 382.9006507192.

The spelling of 56138178 in words is "fifty-six million, one hundred thirty-eight thousand, one hundred seventy-eight".