56874869 has 2 divisors, whose sum is σ = 56874870. Its totient is φ = 56874868.

The previous prime is 56874859. The next prime is 56874889. The reversal of 56874869 is 96847865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52200625 + 4674244 = 7225^2 + 2162^2 .

It is a cyclic number.

It is not a de Polignac number, because 56874869 - 2²⁰ = 55826293 is a prime.

It is a super-2 number, since 2×56874869² = 6469501447534322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56874869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56874859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28437434 + 28437435.

It is an arithmetic number, because the mean of its divisors is an integer number (28437435).

Almost surely, 2^56874869 is an apocalyptic number.

It is an amenable number.

56874869 is a deficient number, since it is larger than the sum of its proper divisors (1).

56874869 is an equidigital number, since it uses as much as digits as its factorization.

56874869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2903040, while the sum is 53.

The square root of 56874869 is about 7541.5428792787. The cubic root of 56874869 is about 384.5682887903.

The spelling of 56874869 in words is "fifty-six million, eight hundred seventy-four thousand, eight hundred sixty-nine".