56961572 has 12 divisors (see below), whose sum is σ = 100884336. Its totient is φ = 28137480.

The previous prime is 56961571. The next prime is 56961581. The reversal of 56961572 is 27516965.

It is a super-2 number, since 2×56961572² = 6489241369422368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56961571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85454 + ... + 86117.

It is an arithmetic number, because the mean of its divisors is an integer number (8407028).

Almost surely, 2^56961572 is an apocalyptic number.

It is an amenable number.

56961572 is a deficient number, since it is larger than the sum of its proper divisors (43922764).

56961572 is a wasteful number, since it uses less digits than its factorization.

56961572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171658 (or 171656 counting only the distinct ones).

The product of its digits is 113400, while the sum is 41.

The square root of 56961572 is about 7547.2890497184. The cubic root of 56961572 is about 384.7636081870.

The spelling of 56961572 in words is "fifty-six million, nine hundred sixty-one thousand, five hundred seventy-two".