56720244 has 72 divisors (see below), whose sum is σ = 162089760. Its totient is φ = 15349824.

The previous prime is 56720243. The next prime is 56720269. The reversal of 56720244 is 44202765.

56720244 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

56720244 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56720243) 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, 8634 + ... + 13710.

Almost surely, 2^56720244 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 56720244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81044880).

56720244 is an abundant number, since it is smaller than the sum of its proper divisors (105369516).

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

56720244 is a wasteful number, since it uses less digits than its factorization.

56720244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5117 (or 5108 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 56720244 is about 7531.2843526187. The cubic root of 56720244 is about 384.2194654750.

The spelling of 56720244 in words is "fifty-six million, seven hundred twenty thousand, two hundred forty-four".