55657107 has 12 divisors (see below), whose sum is σ = 87702264. Its totient is φ = 33731520.

The previous prime is 55657103. The next prime is 55657109. The reversal of 55657107 is 70175655.

It is not a de Polignac number, because 55657107 - 2² = 55657103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55657103) 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 11 ways as a sum of consecutive naturals, for example, 280998 + ... + 281195.

It is an arithmetic number, because the mean of its divisors is an integer number (7308522).

Almost surely, 2^55657107 is an apocalyptic number.

55657107 is a deficient number, since it is larger than the sum of its proper divisors (32045157).

55657107 is a wasteful number, since it uses less digits than its factorization.

55657107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562210 (or 562207 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 55657107 is about 7460.3690927460. The cubic root of 55657107 is about 381.8037674367.

The spelling of 55657107 in words is "fifty-five million, six hundred fifty-seven thousand, one hundred seven".