56772165 has 32 divisors (see below), whose sum is σ = 96030720. Its totient is φ = 28581696.

The previous prime is 56772161. The next prime is 56772223. The reversal of 56772165 is 56127765.

It is not a de Polignac number, because 56772165 - 2² = 56772161 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56772161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26214 + ... + 28296.

It is an arithmetic number, because the mean of its divisors is an integer number (3000960).

Almost surely, 2^56772165 is an apocalyptic number.

It is an amenable number.

56772165 is a deficient number, since it is larger than the sum of its proper divisors (39258555).

56772165 is a wasteful number, since it uses less digits than its factorization.

56772165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193.

The product of its digits is 88200, while the sum is 39.

The square root of 56772165 is about 7534.7305857608. The cubic root of 56772165 is about 384.3366662809.

The spelling of 56772165 in words is "fifty-six million, seven hundred seventy-two thousand, one hundred sixty-five".