56398656 has 112 divisors (see below), whose sum is σ = 162616896. Its totient is φ = 17178624.

The previous prime is 56398633. The next prime is 56398679. The reversal of 56398656 is 65689365.

It is an interprime number because it is at equal distance from previous prime (56398633) and next prime (56398679).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120535 + ... + 121001.

Almost surely, 2^56398656 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 56398656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81308448).

56398656 is an abundant number, since it is smaller than the sum of its proper divisors (106218240).

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

56398656 is a wasteful number, since it uses less digits than its factorization.

56398656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 526 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 48.

The square root of 56398656 is about 7509.9038609026. The cubic root of 56398656 is about 383.4919496493.

The spelling of 56398656 in words is "fifty-six million, three hundred ninety-eight thousand, six hundred fifty-six".