56577220470 has 64 divisors (see below), whose sum is σ = 151124057280. Its totient is φ = 15062112000.

The previous prime is 56577220423. The next prime is 56577220517. The reversal of 56577220470 is 7402277565.

56577220470 is a `hidden beast` number, since 5 + 6 + 577 + 2 + 2 + 0 + 4 + 70 = 666.

It is an interprime number because it is at equal distance from previous prime (56577220423) and next prime (56577220517).

It is a super-2 number, since 2×56577220470² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12061 + ... + 336600.

It is an arithmetic number, because the mean of its divisors is an integer number (2361313395).

Almost surely, 2^56577220470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56577220470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75562028640).

56577220470 is an abundant number, since it is smaller than the sum of its proper divisors (94546836810).

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

56577220470 is a wasteful number, since it uses less digits than its factorization.

56577220470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349278 (or 349272 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The spelling of 56577220470 in words is "fifty-six billion, five hundred seventy-seven million, two hundred twenty thousand, four hundred seventy".