55064172 has 12 divisors (see below), whose sum is σ = 128483096. Its totient is φ = 18354720.

The previous prime is 55064161. The next prime is 55064179. The reversal of 55064172 is 27146055.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (55064179) 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, 2294329 + ... + 2294352.

Almost surely, 2^55064172 is an apocalyptic number.

It is an amenable number.

55064172 is an abundant number, since it is smaller than the sum of its proper divisors (73418924).

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

55064172 is a wasteful number, since it uses less digits than its factorization.

55064172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588688 (or 4588686 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 55064172 is about 7420.5237011952. The cubic root of 55064172 is about 380.4430934781.

The spelling of 55064172 in words is "fifty-five million, sixty-four thousand, one hundred seventy-two".