56638296 has 96 divisors (see below), whose sum is σ = 180245520. Its totient is φ = 15840000.

The previous prime is 56638279. The next prime is 56638301. The reversal of 56638296 is 69283665.

It is a happy number.

56638296 is a `hidden beast` number, since 5 + 6 + 638 + 2 + 9 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7546 + ... + 13046.

Almost surely, 2^56638296 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 56638296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90122760).

56638296 is an abundant number, since it is smaller than the sum of its proper divisors (123607224).

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

56638296 is a wasteful number, since it uses less digits than its factorization.

56638296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5537 (or 5530 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 56638296 is about 7525.8418798165. The cubic root of 56638296 is about 384.0343393770.

The spelling of 56638296 in words is "fifty-six million, six hundred thirty-eight thousand, two hundred ninety-six".