56131164 has 24 divisors (see below), whose sum is σ = 145525520. Its totient is φ = 18710352.

The previous prime is 56131147. The next prime is 56131171. The reversal of 56131164 is 46113165.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 259759 + ... + 259974.

Almost surely, 2^56131164 is an apocalyptic number.

56131164 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

56131164 is an abundant number, since it is smaller than the sum of its proper divisors (89394356).

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

56131164 is a wasteful number, since it uses less digits than its factorization.

56131164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519746 (or 519738 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 56131164 is about 7492.0734112794. The cubic root of 56131164 is about 382.8847033009.

The spelling of 56131164 in words is "fifty-six million, one hundred thirty-one thousand, one hundred sixty-four".