56724528 has 80 divisors (see below), whose sum is σ = 169671680. Its totient is φ = 15994368.

The previous prime is 56724523. The next prime is 56724539. The reversal of 56724528 is 82542765.

It is not an unprimeable number, because it can be changed into a prime (56724523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25476 + ... + 27612.

It is an arithmetic number, because the mean of its divisors is an integer number (2120896).

Almost surely, 2^56724528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56724528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84835840).

56724528 is an abundant number, since it is smaller than the sum of its proper divisors (112947152).

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

56724528 is a wasteful number, since it uses less digits than its factorization.

56724528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234 (or 2228 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 56724528 is about 7531.5687608891. The cubic root of 56724528 is about 384.2291384162.

The spelling of 56724528 in words is "fifty-six million, seven hundred twenty-four thousand, five hundred twenty-eight".