56013280 has 96 divisors (see below), whose sum is σ = 142829568. Its totient is φ = 20697600.

The previous prime is 56013263. The next prime is 56013289. The reversal of 56013280 is 8231065.

It is a happy number.

56013280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56013289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113835 + ... + 114325.

It is an arithmetic number, because the mean of its divisors is an integer number (1487808).

Almost surely, 2^56013280 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 56013280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71414784).

56013280 is an abundant number, since it is smaller than the sum of its proper divisors (86816288).

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

56013280 is a wasteful number, since it uses less digits than its factorization.

56013280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 56013280 is about 7484.2020282726. The cubic root of 56013280 is about 382.6164766953.

The spelling of 56013280 in words is "fifty-six million, thirteen thousand, two hundred eighty".