53180172 has 24 divisors (see below), whose sum is σ = 137874800. Its totient is φ = 17726688.

The previous prime is 53180167. The next prime is 53180189. The reversal of 53180172 is 27108135.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246097 + ... + 246312.

Almost surely, 2^53180172 is an apocalyptic number.

It is an amenable number.

53180172 is an abundant number, since it is smaller than the sum of its proper divisors (84694628).

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

53180172 is a wasteful number, since it uses less digits than its factorization.

53180172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492422 (or 492414 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 53180172 is about 7292.4736543919. The cubic root of 53180172 is about 376.0537402439.

The spelling of 53180172 in words is "fifty-three million, one hundred eighty thousand, one hundred seventy-two".