56331924 has 24 divisors (see below), whose sum is σ = 143390688. Its totient is φ = 17070240.

The previous prime is 56331923. The next prime is 56331937. The reversal of 56331924 is 42913365.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56331923) 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, 213247 + ... + 213510.

It is an arithmetic number, because the mean of its divisors is an integer number (5974612).

Almost surely, 2^56331924 is an apocalyptic number.

It is an amenable number.

56331924 is an abundant number, since it is smaller than the sum of its proper divisors (87058764).

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

56331924 is a wasteful number, since it uses less digits than its factorization.

56331924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426775 (or 426773 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 56331924 is about 7505.4596128418. The cubic root of 56331924 is about 383.3406382141.

It can be divided in two parts, 5633 and 1924, that added together give a palindrome (7557).

The spelling of 56331924 in words is "fifty-six million, three hundred thirty-one thousand, nine hundred twenty-four".