56055144 has 64 divisors (see below), whose sum is σ = 148420800. Its totient is φ = 17611776.

The previous prime is 56055143. The next prime is 56055151. The reversal of 56055144 is 44155065.

It is not an unprimeable number, because it can be changed into a prime (56055143) 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, 28992 + ... + 30864.

It is an arithmetic number, because the mean of its divisors is an integer number (2319075).

Almost surely, 2^56055144 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 56055144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74210400).

56055144 is an abundant number, since it is smaller than the sum of its proper divisors (92365656).

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

56055144 is a wasteful number, since it uses less digits than its factorization.

56055144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 56055144 is about 7486.9983304392. The cubic root of 56055144 is about 382.7117747346.

The spelling of 56055144 in words is "fifty-six million, fifty-five thousand, one hundred forty-four".