55608625 has 8 divisors (see below), whose sum is σ = 69399720. Its totient is φ = 44486800.

The previous prime is 55608617. The next prime is 55608629. The reversal of 55608625 is 52680655.

It can be written as a sum of positive squares in 4 ways, for example, as 6594624 + 49014001 = 2568^2 + 7001^2 .

It is not a de Polignac number, because 55608625 - 2³ = 55608617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55608629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222310 + ... + 222559.

It is an arithmetic number, because the mean of its divisors is an integer number (8674965).

Almost surely, 2^55608625 is an apocalyptic number.

It is an amenable number.

55608625 is a deficient number, since it is larger than the sum of its proper divisors (13791095).

55608625 is an equidigital number, since it uses as much as digits as its factorization.

55608625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444884 (or 444874 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 55608625 is about 7457.1190817902. The cubic root of 55608625 is about 381.6928742156.

The spelling of 55608625 in words is "fifty-five million, six hundred eight thousand, six hundred twenty-five".