55657156 has 12 divisors (see below), whose sum is σ = 102526480. Its totient is φ = 26363880.

The previous prime is 55657153. The next prime is 55657169. The reversal of 55657156 is 65175655.

It is not an unprimeable number, because it can be changed into a prime (55657153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366090 + ... + 366241.

Almost surely, 2^55657156 is an apocalyptic number.

It is an amenable number.

55657156 is a deficient number, since it is larger than the sum of its proper divisors (46869324).

55657156 is a wasteful number, since it uses less digits than its factorization.

55657156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732354 (or 732352 counting only the distinct ones).

The product of its digits is 157500, while the sum is 40.

The square root of 55657156 is about 7460.3723767651. The cubic root of 55657156 is about 381.8038794821.

It can be divided in two parts, 5565 and 7156, that added together give a palindrome (12721).

The spelling of 55657156 in words is "fifty-five million, six hundred fifty-seven thousand, one hundred fifty-six".