56240724 has 24 divisors (see below), whose sum is σ = 131779648. Its totient is φ = 18668160.

The previous prime is 56240711. The next prime is 56240753. The reversal of 56240724 is 42704265.

It is a junction number, because it is equal to n+sod(n) for n = 56240691 and 56240700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6832 + ... + 12615.

Almost surely, 2^56240724 is an apocalyptic number.

It is an amenable number.

56240724 is an abundant number, since it is smaller than the sum of its proper divisors (75538924).

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

56240724 is a wasteful number, since it uses less digits than its factorization.

56240724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19695 (or 19693 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 56240724 is about 7499.3815745033. The cubic root of 56240724 is about 383.1336534499.

Adding to 56240724 its reverse (42704265), we get a palindrome (98944989).

The spelling of 56240724 in words is "fifty-six million, two hundred forty thousand, seven hundred twenty-four".