56767565 has 16 divisors (see below), whose sum is σ = 71318016. Its totient is φ = 43296000.

The previous prime is 56767561. The next prime is 56767577. The reversal of 56767565 is 56576765.

It is not a de Polignac number, because 56767565 - 2² = 56767561 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56767561) 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, 45500 + ... + 46730.

It is an arithmetic number, because the mean of its divisors is an integer number (4457376).

Almost surely, 2^56767565 is an apocalyptic number.

It is an amenable number.

56767565 is a deficient number, since it is larger than the sum of its proper divisors (14550451).

56767565 is a wasteful number, since it uses less digits than its factorization.

56767565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its digits is 1323000, while the sum is 47.

The square root of 56767565 is about 7534.4253264599. The cubic root of 56767565 is about 384.3262856280.

The spelling of 56767565 in words is "fifty-six million, seven hundred sixty-seven thousand, five hundred sixty-five".