56531332 has 48 divisors (see below), whose sum is σ = 121306752. Its totient is φ = 22682880.

The previous prime is 56531329. The next prime is 56531339. The reversal of 56531332 is 23313565.

56531332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56531332.

It is not an unprimeable number, because it can be changed into a prime (56531339) 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 15 ways as a sum of consecutive naturals, for example, 11008 + ... + 15304.

It is an arithmetic number, because the mean of its divisors is an integer number (2527224).

Almost surely, 2^56531332 is an apocalyptic number.

56531332 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56531332 is an abundant number, since it is smaller than the sum of its proper divisors (64775420).

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

56531332 is a wasteful number, since it uses less digits than its factorization.

56531332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4348 (or 4346 counting only the distinct ones).

The product of its digits is 8100, while the sum is 28.

The square root of 56531332 is about 7518.7320739603. The cubic root of 56531332 is about 383.7924315851.

Adding to 56531332 its reverse (23313565), we get a palindrome (79844897).

The spelling of 56531332 in words is "fifty-six million, five hundred thirty-one thousand, three hundred thirty-two".