56706865 has 4 divisors (see below), whose sum is σ = 68048244. Its totient is φ = 45365488.

The previous prime is 56706827. The next prime is 56706877. The reversal of 56706865 is 56860765.

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 6594624 + 50112241 = 2568^2 + 7079^2 .

It is a cyclic number.

It is not a de Polignac number, because 56706865 - 2⁷ = 56706737 is a prime.

It is a Duffinian 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, 5670682 + ... + 5670691.

It is an arithmetic number, because the mean of its divisors is an integer number (17012061).

Almost surely, 2^56706865 is an apocalyptic number.

It is an amenable number.

56706865 is a deficient number, since it is larger than the sum of its proper divisors (11341379).

56706865 is a wasteful number, since it uses less digits than its factorization.

56706865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11341378.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 56706865 is about 7530.3960719208. The cubic root of 56706865 is about 384.1892535901.

The spelling of 56706865 in words is "fifty-six million, seven hundred six thousand, eight hundred sixty-five".