56285865 has 24 divisors (see below), whose sum is σ = 98434440. Its totient is φ = 29750784.

The previous prime is 56285857. The next prime is 56285881. The reversal of 56285865 is 56858265.

56285865 = T₁₃₃ + T₁₃₄ + ... + T₆₉₇.

56285865 is a `hidden beast` number, since 5 + 62 + 8 + 586 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3229209 + 53056656 = 1797^2 + 7284^2 .

It is not a de Polignac number, because 56285865 - 2³ = 56285857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56285865.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450 + ... + 10619.

It is an arithmetic number, because the mean of its divisors is an integer number (4101435).

Almost surely, 2^56285865 is an apocalyptic number.

It is an amenable number.

56285865 is a deficient number, since it is larger than the sum of its proper divisors (42148575).

56285865 is a wasteful number, since it uses less digits than its factorization.

56285865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193 (or 11190 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

The square root of 56285865 is about 7502.3906189961. The cubic root of 56285865 is about 383.2361320447.

The spelling of 56285865 in words is "fifty-six million, two hundred eighty-five thousand, eight hundred sixty-five".