56572120 has 128 divisors (see below), whose sum is σ = 149817600. Its totient is φ = 19008000.

The previous prime is 56572097. The next prime is 56572163. The reversal of 56572120 is 2127565.

It is a super-2 number, since 2×56572120² = 6400809522588800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 560070 + ... + 560170.

It is an arithmetic number, because the mean of its divisors is an integer number (1170450).

Almost surely, 2^56572120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56572120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74908800).

56572120 is an abundant number, since it is smaller than the sum of its proper divisors (93245480).

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

56572120 is a wasteful number, since it uses less digits than its factorization.

56572120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 56572120 is about 7521.4440102948. Note that the first 3 decimals coincide. The cubic root of 56572120 is about 383.8847129317.

Adding to 56572120 its reverse (2127565), we get a palindrome (58699685).

It can be divided in two parts, 5657 and 2120, that added together give a palindrome (7777).

The spelling of 56572120 in words is "fifty-six million, five hundred seventy-two thousand, one hundred twenty".