56575765 has 4 divisors (see below), whose sum is σ = 67890924. Its totient is φ = 45260608.

The previous prime is 56575763. The next prime is 56575789. The reversal of 56575765 is 56757565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56757565 = 5 ⋅11351513.

It can be written as a sum of positive squares in 2 ways, for example, as 11336689 + 45239076 = 3367^2 + 6726^2 .

It is a cyclic number.

It is not a de Polignac number, because 56575765 - 2¹ = 56575763 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 (56575763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5657572 + ... + 5657581.

It is an arithmetic number, because the mean of its divisors is an integer number (16972731).

Almost surely, 2^56575765 is an apocalyptic number.

It is an amenable number.

56575765 is a deficient number, since it is larger than the sum of its proper divisors (11315159).

56575765 is a wasteful number, since it uses less digits than its factorization.

56575765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11315158.

The product of its digits is 1102500, while the sum is 46.

The square root of 56575765 is about 7521.6863135869. The cubic root of 56575765 is about 383.8929574506.

The spelling of 56575765 in words is "fifty-six million, five hundred seventy-five thousand, seven hundred sixty-five".