55656657 has 48 divisors (see below), whose sum is σ = 98197632. Its totient is φ = 29652480.

The previous prime is 55656631. The next prime is 55656673. The reversal of 55656657 is 75665655.

It is not a de Polignac number, because 55656657 - 2⁸ = 55656401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55656617) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167982 + ... + 168312.

It is an arithmetic number, because the mean of its divisors is an integer number (2045784).

Almost surely, 2^55656657 is an apocalyptic number.

It is an amenable number.

55656657 is a deficient number, since it is larger than the sum of its proper divisors (42540975).

55656657 is a wasteful number, since it uses less digits than its factorization.

55656657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 515 counting only the distinct ones).

The product of its digits is 945000, while the sum is 45.

The square root of 55656657 is about 7460.3389333193. The cubic root of 55656657 is about 381.8027384446.

The spelling of 55656657 in words is "fifty-five million, six hundred fifty-six thousand, six hundred fifty-seven".