56640015224 has 16 divisors (see below), whose sum is σ = 114369261720. Its totient is φ = 26141545440.

The previous prime is 56640015221. The next prime is 56640015269. The reversal of 56640015224 is 42251004665.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56640015221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272307662 + ... + 272307869.

Almost surely, 2^56640015224 is an apocalyptic number.

It is an amenable number.

56640015224 is an abundant number, since it is smaller than the sum of its proper divisors (57729246496).

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

56640015224 is a wasteful number, since it uses less digits than its factorization.

56640015224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544615550 (or 544615546 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 56640015224 its reverse (42251004665), we get a palindrome (98891019889).

The spelling of 56640015224 in words is "fifty-six billion, six hundred forty million, fifteen thousand, two hundred twenty-four".