56488440 has 64 divisors (see below), whose sum is σ = 172265760. Its totient is φ = 14814720.

The previous prime is 56488427. The next prime is 56488451. The reversal of 56488440 is 4488465.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3462 + ... + 11178.

Almost surely, 2^56488440 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 56488440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86132880).

56488440 is an abundant number, since it is smaller than the sum of its proper divisors (115777320).

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

56488440 is a wasteful number, since it uses less digits than its factorization.

56488440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7792 (or 7788 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 39.

The square root of 56488440 is about 7515.8791900881. The cubic root of 56488440 is about 383.6953421218.

The spelling of 56488440 in words is "fifty-six million, four hundred eighty-eight thousand, four hundred forty".