56973231 has 72 divisors (see below), whose sum is σ = 103076064. Its totient is φ = 30159360.

The previous prime is 56973221. The next prime is 56973233. The reversal of 56973231 is 13237965.

56973231 is a `hidden beast` number, since 569 + 73 + 23 + 1 = 666.

It is not a de Polignac number, because 56973231 - 2⁶ = 56973167 is a prime.

It is a super-2 number, since 2×56973231² = 6491898101158722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56973233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 415795 + ... + 415931.

It is an arithmetic number, because the mean of its divisors is an integer number (1431612).

Almost surely, 2^56973231 is an apocalyptic number.

56973231 is a deficient number, since it is larger than the sum of its proper divisors (46102833).

56973231 is a wasteful number, since it uses less digits than its factorization.

56973231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 211 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 56973231 is about 7548.0614067454. The cubic root of 56973231 is about 384.7898577720.

The spelling of 56973231 in words is "fifty-six million, nine hundred seventy-three thousand, two hundred thirty-one".