56865228 has 24 divisors (see below), whose sum is σ = 151640832. Its totient is φ = 16247184.

The previous prime is 56865217. The next prime is 56865229. The reversal of 56865228 is 82256865.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 56865228.

It is not an unprimeable number, because it can be changed into a prime (56865229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338400 + ... + 338567.

It is an arithmetic number, because the mean of its divisors is an integer number (6318368).

Almost surely, 2^56865228 is an apocalyptic number.

It is an amenable number.

56865228 is an abundant number, since it is smaller than the sum of its proper divisors (94775604).

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

56865228 is a wasteful number, since it uses less digits than its factorization.

56865228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676981 (or 676979 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 56865228 is about 7540.9036593766. The cubic root of 56865228 is about 384.5465578545.

The spelling of 56865228 in words is "fifty-six million, eight hundred sixty-five thousand, two hundred twenty-eight".