56446025216 has 80 divisors (see below), whose sum is σ = 129759775200. Its totient is φ = 24028569600.

The previous prime is 56446025203. The next prime is 56446025221. The reversal of 56446025216 is 61252064465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481166 + ... + 586866.

It is an arithmetic number, because the mean of its divisors is an integer number (1621997190).

Almost surely, 2^56446025216 is an apocalyptic number.

56446025216 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 56446025216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64879887600).

56446025216 is an abundant number, since it is smaller than the sum of its proper divisors (73313749984).

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

56446025216 is a wasteful number, since it uses less digits than its factorization.

56446025216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105875 (or 105859 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 56446025216 in words is "fifty-six billion, four hundred forty-six million, twenty-five thousand, two hundred sixteen".