56039631648 has 576 divisors, whose sum is σ = 202473105408. Its totient is φ = 13340436480.

The previous prime is 56039631631. The next prime is 56039631667. The reversal of 56039631648 is 84613693065.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56039631648.

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, 152696361 + ... + 152696727.

It is an arithmetic number, because the mean of its divisors is an integer number (351515808).

Almost surely, 2^56039631648 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 56039631648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101236552704).

56039631648 is an abundant number, since it is smaller than the sum of its proper divisors (146433473760).

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

56039631648 is a wasteful number, since it uses less digits than its factorization.

56039631648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 56039631648 in words is "fifty-six billion, thirty-nine million, six hundred thirty-one thousand, six hundred forty-eight".