56835567984 has 120 divisors (see below), whose sum is σ = 163286095152. Its totient is φ = 17015132160.

The previous prime is 56835567983. The next prime is 56835568007. The reversal of 56835567984 is 48976553865.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56835567983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 205464 + ... + 394824.

Almost surely, 2^56835567984 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 56835567984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81643047576).

56835567984 is an abundant number, since it is smaller than the sum of its proper divisors (106450527168).

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

56835567984 is a wasteful number, since it uses less digits than its factorization.

56835567984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189435 (or 189416 counting only the distinct ones).

The product of its digits is 217728000, while the sum is 66.

The spelling of 56835567984 in words is "fifty-six billion, eight hundred thirty-five million, five hundred sixty-seven thousand, nine hundred eighty-four".