55173168 has 30 divisors (see below), whose sum is σ = 154408644. Its totient is φ = 18391008.

The previous prime is 55173133. The next prime is 55173187. The reversal of 55173168 is 86137155.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191430 + ... + 191717.

Almost surely, 2^55173168 is an apocalyptic number.

It is an amenable number.

55173168 is an abundant number, since it is smaller than the sum of its proper divisors (99235476).

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

55173168 is a wasteful number, since it uses less digits than its factorization.

55173168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383161 (or 383152 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 55173168 is about 7427.8642960140. The cubic root of 55173168 is about 380.6939489417.

The spelling of 55173168 in words is "fifty-five million, one hundred seventy-three thousand, one hundred sixty-eight".