56531118 has 32 divisors (see below), whose sum is σ = 136016640. Its totient is φ = 15301440.

The previous prime is 56531107. The next prime is 56531149. The reversal of 56531118 is 81113565.

It is a congruent number.

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, 34623 + ... + 36218.

It is an arithmetic number, because the mean of its divisors is an integer number (4250520).

Almost surely, 2^56531118 is an apocalyptic number.

56531118 is an abundant number, since it is smaller than the sum of its proper divisors (79485522).

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

56531118 is a wasteful number, since it uses less digits than its factorization.

56531118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70872.

The product of its digits is 3600, while the sum is 30.

The square root of 56531118 is about 7518.7178428240. The cubic root of 56531118 is about 383.7919473009.

The spelling of 56531118 in words is "fifty-six million, five hundred thirty-one thousand, one hundred eighteen".