56837765 has 4 divisors (see below), whose sum is σ = 68205324. Its totient is φ = 45470208.

The previous prime is 56837743. The next prime is 56837771. The reversal of 56837765 is 56773865.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7963684 + 48874081 = 2822^2 + 6991^2 .

It is a cyclic number.

It is not a de Polignac number, because 56837765 - 2¹⁶ = 56772229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5683772 + ... + 5683781.

It is an arithmetic number, because the mean of its divisors is an integer number (17051331).

Almost surely, 2^56837765 is an apocalyptic number.

It is an amenable number.

56837765 is a deficient number, since it is larger than the sum of its proper divisors (11367559).

56837765 is a wasteful number, since it uses less digits than its factorization.

56837765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11367558.

The product of its digits is 1058400, while the sum is 47.

The square root of 56837765 is about 7539.0825038595. The cubic root of 56837765 is about 384.4846424388.

The spelling of 56837765 in words is "fifty-six million, eight hundred thirty-seven thousand, seven hundred sixty-five".