56002257 has 6 divisors (see below), whose sum is σ = 80892162. Its totient is φ = 37334832.

The previous prime is 56002237. The next prime is 56002279. The reversal of 56002257 is 75220065.

56002257 is a `hidden beast` number, since 5 + 600 + 2 + 2 + 57 = 666.

56002257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 30206016 + 25796241 = 5496^2 + 5079^2 .

It is not a de Polignac number, because 56002257 - 2¹⁵ = 55969489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56002257.

It is not an unprimeable number, because it can be changed into a prime (56002207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3111228 + ... + 3111245.

It is an arithmetic number, because the mean of its divisors is an integer number (13482027).

Almost surely, 2^56002257 is an apocalyptic number.

It is an amenable number.

56002257 is a deficient number, since it is larger than the sum of its proper divisors (24889905).

56002257 is a wasteful number, since it uses less digits than its factorization.

56002257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6222479 (or 6222476 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 56002257 is about 7483.4655741842. The cubic root of 56002257 is about 382.5913763493.

The spelling of 56002257 in words is "fifty-six million, two thousand, two hundred fifty-seven".