56055636 has 144 divisors (see below), whose sum is σ = 177585408. Its totient is φ = 14515200.

The previous prime is 56055619. The next prime is 56055653. The reversal of 56055636 is 63655065.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (56055619) and next prime (56055653).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 56055636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 232476 + ... + 232716.

It is an arithmetic number, because the mean of its divisors is an integer number (1233232).

Almost surely, 2^56055636 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 56055636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88792704).

56055636 is an abundant number, since it is smaller than the sum of its proper divisors (121529772).

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

56055636 is a wasteful number, since it uses less digits than its factorization.

56055636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The square root of 56055636 is about 7487.0311873265. The cubic root of 56055636 is about 382.7128944275.

The spelling of 56055636 in words is "fifty-six million, fifty-five thousand, six hundred thirty-six".