56481572 has 24 divisors (see below), whose sum is σ = 113171520. Its totient is φ = 24161760.

The previous prime is 56481569. The next prime is 56481577. The reversal of 56481572 is 27518465.

It is not an unprimeable number, because it can be changed into a prime (56481577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16922 + ... + 19982.

It is an arithmetic number, because the mean of its divisors is an integer number (4715480).

Almost surely, 2^56481572 is an apocalyptic number.

It is an amenable number.

56481572 is an abundant number, since it is smaller than the sum of its proper divisors (56689948).

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

56481572 is a wasteful number, since it uses less digits than its factorization.

56481572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731 (or 3729 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 56481572 is about 7515.4222768917. The cubic root of 56481572 is about 383.6797912917.

The spelling of 56481572 in words is "fifty-six million, four hundred eighty-one thousand, five hundred seventy-two".