56577220448 has 72 divisors (see below), whose sum is σ = 129722835312. Its totient is φ = 24219143424.

The previous prime is 56577220423. The next prime is 56577220517. The reversal of 56577220448 is 84402277565.

56577220448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 56577220396 and 56577220405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1354565 + ... + 1395707.

It is an arithmetic number, because the mean of its divisors is an integer number (1801706046).

Almost surely, 2^56577220448 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 56577220448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64861417656).

56577220448 is an abundant number, since it is smaller than the sum of its proper divisors (73145614864).

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

56577220448 is a wasteful number, since it uses less digits than its factorization.

56577220448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42044 (or 42029 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 50.

The spelling of 56577220448 in words is "fifty-six billion, five hundred seventy-seven million, two hundred twenty thousand, four hundred forty-eight".