56002788 has 18 divisors (see below), whose sum is σ = 141562694. Its totient is φ = 18667584.

The previous prime is 56002781. The next prime is 56002789. The reversal of 56002788 is 88720065.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 1272384 = 7398^2 + 1128^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1555633 = 56002788 / (5 + 6 + 0 + 0 + 2 + 7 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (56002781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 777781 + ... + 777852.

Almost surely, 2^56002788 is an apocalyptic number.

It is an amenable number.

56002788 is an abundant number, since it is smaller than the sum of its proper divisors (85559906).

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

56002788 is a wasteful number, since it uses less digits than its factorization.

56002788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555643 (or 1555638 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 56002788 is about 7483.5010523150. The cubic root of 56002788 is about 382.5925855588.

The spelling of 56002788 in words is "fifty-six million, two thousand, seven hundred eighty-eight".