56611765 has 16 divisors (see below), whose sum is σ = 77807232. Its totient is φ = 38735424.

The previous prime is 56611747. The next prime is 56611769. The reversal of 56611765 is 56711665.

It is not a de Polignac number, because 56611765 - 2⁵ = 56611733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56611769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17667 + ... + 20623.

It is an arithmetic number, because the mean of its divisors is an integer number (4862952).

Almost surely, 2^56611765 is an apocalyptic number.

It is an amenable number.

56611765 is a deficient number, since it is larger than the sum of its proper divisors (21195467).

56611765 is a wasteful number, since it uses less digits than its factorization.

56611765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516.

The product of its digits is 37800, while the sum is 37.

The square root of 56611765 is about 7524.0790134076. The cubic root of 56611765 is about 383.9743657837.

The spelling of 56611765 in words is "fifty-six million, six hundred eleven thousand, seven hundred sixty-five".