56172 has 24 divisors (see below), whose sum is σ = 136192. Its totient is φ = 18000.

The previous prime is 56171. The next prime is 56179. The reversal of 56172 is 27165.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (56171) 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, 297 + ... + 447.

2⁵⁶¹⁷² is an apocalyptic number.

It is an amenable number.

56172 is an abundant number, since it is smaller than the sum of its proper divisors (80020).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68096).

56172 is a wasteful number, since it uses less digits than its factorization.

56172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 187 counting only the distinct ones).

The product of its digits is 420, while the sum is 21.

The square root of 56172 is about 237.0063290294. The cubic root of 56172 is about 38.2977531649.

The spelling of 56172 in words is "fifty-six thousand, one hundred seventy-two".