56663256 has 64 divisors (see below), whose sum is σ = 153508320. Its totient is φ = 17326080.

The previous prime is 56663251. The next prime is 56663273. The reversal of 56663256 is 65236665.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56663251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59746 + ... + 60686.

Almost surely, 2^56663256 is an apocalyptic number.

It is a pronic number, being equal to 7527×7528.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56663256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76754160).

56663256 is an abundant number, since it is smaller than the sum of its proper divisors (96845064).

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

56663256 is a wasteful number, since it uses less digits than its factorization.

56663256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1156 (or 1152 counting only the distinct ones).

The product of its digits is 194400, while the sum is 39.

The square root of 56663256 is about 7527.4999833942. The cubic root of 56663256 is about 384.0907446131.

The spelling of 56663256 in words is "fifty-six million, six hundred sixty-three thousand, two hundred fifty-six".