56739724 has 12 divisors (see below), whose sum is σ = 99512224. Its totient is φ = 28307664.

The previous prime is 56739707. The next prime is 56739731. The reversal of 56739724 is 42793765.

56739724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 13467 + ... + 17170.

Almost surely, 2^56739724 is an apocalyptic number.

It is an amenable number.

56739724 is a deficient number, since it is larger than the sum of its proper divisors (42772500).

56739724 is a wasteful number, since it uses less digits than its factorization.

56739724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31104 (or 31102 counting only the distinct ones).

The product of its digits is 317520, while the sum is 43.

The square root of 56739724 is about 7532.5775137067. The cubic root of 56739724 is about 384.2634458836.

The spelling of 56739724 in words is "fifty-six million, seven hundred thirty-nine thousand, seven hundred twenty-four".