56115456 has 72 divisors (see below), whose sum is σ = 154232064. Its totient is φ = 18094080.

The previous prime is 56115443. The next prime is 56115463. The reversal of 56115456 is 65451165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22630 + ... + 24986.

It is an arithmetic number, because the mean of its divisors is an integer number (2142112).

Almost surely, 2^56115456 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 56115456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77116032).

56115456 is an abundant number, since it is smaller than the sum of its proper divisors (98116608).

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

56115456 is a wasteful number, since it uses less digits than its factorization.

56115456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407 (or 2393 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 56115456 is about 7491.0250299942. The cubic root of 56115456 is about 382.8489839036.

The spelling of 56115456 in words is "fifty-six million, one hundred fifteen thousand, four hundred fifty-six".