56895621648 has 80 divisors (see below), whose sum is σ = 151053564096. Its totient is φ = 18440317440.

The previous prime is 56895621589. The next prime is 56895621749. The reversal of 56895621648 is 84612659865.

56895621648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×56895621648² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56895621591 and 56895621600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2869015 + ... + 2888777.

Almost surely, 2^56895621648 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 56895621648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75526782048).

56895621648 is an abundant number, since it is smaller than the sum of its proper divisors (94157942448).

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

56895621648 is a wasteful number, since it uses less digits than its factorization.

56895621648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21432 (or 21426 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 60.

The spelling of 56895621648 in words is "fifty-six billion, eight hundred ninety-five million, six hundred twenty-one thousand, six hundred forty-eight".