56480840 has 64 divisors (see below), whose sum is σ = 139829760. Its totient is φ = 20401920.

The previous prime is 56480819. The next prime is 56480849. The reversal of 56480840 is 4808465.

56480840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 56480840.

It is not an unprimeable number, because it can be changed into a prime (56480849) 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, 23285 + ... + 25595.

It is an arithmetic number, because the mean of its divisors is an integer number (2184840).

Almost surely, 2^56480840 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 56480840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69914880).

56480840 is an abundant number, since it is smaller than the sum of its proper divisors (83348920).

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

56480840 is a wasteful number, since it uses less digits than its factorization.

56480840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2378 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 56480840 is about 7515.3735768756. The cubic root of 56480840 is about 383.6781337904.

The spelling of 56480840 in words is "fifty-six million, four hundred eighty thousand, eight hundred forty".