56572847856 has 480 divisors, whose sum is σ = 193635606528. Its totient is φ = 15076730880.

The previous prime is 56572847827. The next prime is 56572847861. The reversal of 56572847856 is 65874827565.

56572847856 is a `hidden beast` number, since 5 + 6 + 572 + 8 + 4 + 7 + 8 + 56 = 666.

It is a super-2 number, since 2×56572847856² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 56572847793 and 56572847802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 193081246 + ... + 193081538.

Almost surely, 2^56572847856 is an apocalyptic number.

56572847856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56572847856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96817803264).

56572847856 is an abundant number, since it is smaller than the sum of its proper divisors (137062758672).

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

56572847856 is a wasteful number, since it uses less digits than its factorization.

56572847856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 540 counting only the distinct ones).

The product of its digits is 112896000, while the sum is 63.

The spelling of 56572847856 in words is "fifty-six billion, five hundred seventy-two million, eight hundred forty-seven thousand, eight hundred fifty-six".