56715624 has 96 divisors (see below), whose sum is σ = 179699520. Its totient is φ = 15821568.

The previous prime is 56715599. The next prime is 56715649. The reversal of 56715624 is 42651765.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56715599) and next prime (56715649).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20364 + ... + 22980.

It is an arithmetic number, because the mean of its divisors is an integer number (1871870).

Almost surely, 2^56715624 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 56715624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89849760).

56715624 is an abundant number, since it is smaller than the sum of its proper divisors (122983896).

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

56715624 is a wasteful number, since it uses less digits than its factorization.

56715624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679 (or 2672 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 56715624 is about 7530.9776257801. The cubic root of 56715624 is about 384.2090333259.

The spelling of 56715624 in words is "fifty-six million, seven hundred fifteen thousand, six hundred twenty-four".