56223230656 has 56 divisors (see below), whose sum is σ = 115608120320. Its totient is φ = 27110184192.

The previous prime is 56223230599. The next prime is 56223230663. The reversal of 56223230656 is 65603232265.

It is a happy number.

It is a super-2 number, since 2×56223230656² (a number of 22 digits) contains 22 as substring.

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, 88105 + ... + 346711.

It is an arithmetic number, because the mean of its divisors is an integer number (2064430720).

Almost surely, 2^56223230656 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 56223230656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57804060160).

56223230656 is an abundant number, since it is smaller than the sum of its proper divisors (59384889664).

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

56223230656 is a wasteful number, since it uses less digits than its factorization.

56223230656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258741 (or 258731 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 56223230656 in words is "fifty-six billion, two hundred twenty-three million, two hundred thirty thousand, six hundred fifty-six".