56328724 has 12 divisors (see below), whose sum is σ = 98752500. Its totient is φ = 28113728.

The previous prime is 56328721. The next prime is 56328731. The reversal of 56328724 is 42782365.

It can be written as a sum of positive squares in 2 ways, for example, as 36240400 + 20088324 = 6020^2 + 4482^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56328721) 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, 10099 + ... + 14650.

It is an arithmetic number, because the mean of its divisors is an integer number (8229375).

Almost surely, 2^56328724 is an apocalyptic number.

It is an amenable number.

56328724 is a deficient number, since it is larger than the sum of its proper divisors (42423776).

56328724 is a wasteful number, since it uses less digits than its factorization.

56328724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25322 (or 25320 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 56328724 is about 7505.2464316637. The cubic root of 56328724 is about 383.3333793741. Note that the first 4 decimals are identical.

The spelling of 56328724 in words is "fifty-six million, three hundred twenty-eight thousand, seven hundred twenty-four".