56810865 has 8 divisors (see below), whose sum is σ = 90897408. Its totient is φ = 30299120.

The previous prime is 56810857. The next prime is 56810891. The reversal of 56810865 is 56801865.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56810865 - 2³ = 56810857 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893681 + ... + 1893710.

It is an arithmetic number, because the mean of its divisors is an integer number (11362176).

Almost surely, 2^56810865 is an apocalyptic number.

It is an amenable number.

56810865 is a deficient number, since it is larger than the sum of its proper divisors (34086543).

56810865 is a wasteful number, since it uses less digits than its factorization.

56810865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3787399.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 56810865 is about 7537.2982560066. The cubic root of 56810865 is about 384.4239769702.

It can be divided in two parts, 56810 and 865, that added together give a palindrome (57675).

The spelling of 56810865 in words is "fifty-six million, eight hundred ten thousand, eight hundred sixty-five".