55165128 has 32 divisors (see below), whose sum is σ = 138101760. Its totient is φ = 18363200.

The previous prime is 55165127. The next prime is 55165133. The reversal of 55165128 is 82156155.

It is not an unprimeable number, because it can be changed into a prime (55165127) 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, 26626 + ... + 28622.

It is an arithmetic number, because the mean of its divisors is an integer number (4315680).

Almost surely, 2^55165128 is an apocalyptic number.

It is an amenable number.

55165128 is an abundant number, since it is smaller than the sum of its proper divisors (82936632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55165128 is a wasteful number, since it uses less digits than its factorization.

55165128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157 (or 3153 counting only the distinct ones).

The product of its digits is 12000, while the sum is 33.

The square root of 55165128 is about 7427.3230709321. The cubic root of 55165128 is about 380.6754560877.

The spelling of 55165128 in words is "fifty-five million, one hundred sixty-five thousand, one hundred twenty-eight".