56656625 has 16 divisors (see below), whose sum is σ = 71003088. Its totient is φ = 45136000.

The previous prime is 56656603. The next prime is 56656627. The reversal of 56656625 is 52665665.

It can be written as a sum of positive squares in 8 ways, for example, as 10837264 + 45819361 = 3292^2 + 6769^2 .

It is not a de Polignac number, because 56656625 - 2²² = 52462321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56656627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34319 + ... + 35931.

It is an arithmetic number, because the mean of its divisors is an integer number (4437693).

Almost surely, 2^56656625 is an apocalyptic number.

It is an amenable number.

56656625 is a deficient number, since it is larger than the sum of its proper divisors (14346463).

56656625 is a wasteful number, since it uses less digits than its factorization.

56656625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1909 (or 1899 counting only the distinct ones).

The product of its digits is 324000, while the sum is 41.

The square root of 56656625 is about 7527.0595188294. The cubic root of 56656625 is about 384.0757613284.

The spelling of 56656625 in words is "fifty-six million, six hundred fifty-six thousand, six hundred twenty-five".