56720120 has 32 divisors (see below), whose sum is σ = 127969200. Its totient is φ = 22626048.

The previous prime is 56720113. The next prime is 56720159. The reversal of 56720120 is 2102765.

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, 14627 + ... + 18093.

Almost surely, 2^56720120 is an apocalyptic number.

It is an amenable number.

56720120 is an abundant number, since it is smaller than the sum of its proper divisors (71249080).

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

56720120 is a wasteful number, since it uses less digits than its factorization.

56720120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 56720120 is about 7531.2761202867. The cubic root of 56720120 is about 384.2191854853.

Adding to 56720120 its reverse (2102765), we get a palindrome (58822885).

The spelling of 56720120 in words is "fifty-six million, seven hundred twenty thousand, one hundred twenty".