56720024 has 32 divisors (see below), whose sum is σ = 117508320. Its totient is φ = 25529856.

The previous prime is 56720009. The next prime is 56720033. The reversal of 56720024 is 42002765.

56720024 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56720024² = 6434322245121152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56719975 and 56720002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5939 + ... + 12194.

It is an arithmetic number, because the mean of its divisors is an integer number (3672135).

Almost surely, 2^56720024 is an apocalyptic number.

It is an amenable number.

56720024 is an abundant number, since it is smaller than the sum of its proper divisors (60788296).

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

56720024 is a wasteful number, since it uses less digits than its factorization.

56720024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18179 (or 18175 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 56720024 is about 7531.2697468621. The cubic root of 56720024 is about 384.2189687188.

Adding to 56720024 its reverse (42002765), we get a palindrome (98722789).

The spelling of 56720024 in words is "fifty-six million, seven hundred twenty thousand, twenty-four".