56157724 has 18 divisors (see below), whose sum is σ = 114321480. Its totient is φ = 24067512.

The previous prime is 56157721. The next prime is 56157737. The reversal of 56157724 is 42775165.

56157724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56157721) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 143064 + ... + 143455.

Almost surely, 2^56157724 is an apocalyptic number.

It is an amenable number.

56157724 is an abundant number, since it is smaller than the sum of its proper divisors (58163756).

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

56157724 is a wasteful number, since it uses less digits than its factorization.

56157724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286537 (or 286528 counting only the distinct ones).

The product of its digits is 58800, while the sum is 37.

The square root of 56157724 is about 7493.8457416736. The cubic root of 56157724 is about 382.9450845783.

It can be divided in two parts, 561 and 57724, that added together give a palindrome (58285).

The spelling of 56157724 in words is "fifty-six million, one hundred fifty-seven thousand, seven hundred twenty-four".