56613724 has 6 divisors (see below), whose sum is σ = 99074024. Its totient is φ = 28306860.

The previous prime is 56613721. The next prime is 56613751. The reversal of 56613724 is 42731665.

It is a happy number.

It is a super-2 number, since 2×56613724² = 6410227490296352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56613724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56613721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7076712 + ... + 7076719.

Almost surely, 2^56613724 is an apocalyptic number.

It is an amenable number.

56613724 is a deficient number, since it is larger than the sum of its proper divisors (42460300).

56613724 is a wasteful number, since it uses less digits than its factorization.

56613724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14153435 (or 14153433 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 56613724 is about 7524.2091943273. The cubic root of 56613724 is about 383.9787947636.

The spelling of 56613724 in words is "fifty-six million, six hundred thirteen thousand, seven hundred twenty-four".