56217363072 has 128 divisors (see below), whose sum is σ = 163018080960. Its totient is φ = 17060585472.

The previous prime is 56217363061. The next prime is 56217363149. The reversal of 56217363072 is 27036371265.

It is a tau number, because it is divible by the number of its divisors (128).

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, 287283 + ... + 441549.

Almost surely, 2^56217363072 is an apocalyptic number.

56217363072 is a gapful number since it is divisible by the number (52) 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 56217363072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81509040480).

56217363072 is an abundant number, since it is smaller than the sum of its proper divisors (106800717888).

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

56217363072 is a wasteful number, since it uses less digits than its factorization.

56217363072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154370 (or 154358 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 42.

The spelling of 56217363072 in words is "fifty-six billion, two hundred seventeen million, three hundred sixty-three thousand, seventy-two".