56874991853 has 2 divisors, whose sum is σ = 56874991854. Its totient is φ = 56874991852.

The previous prime is 56874991819. The next prime is 56874991889. The reversal of 56874991853 is 35819947865.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34626882889 + 22248108964 = 186083^2 + 149158^2 .

It is a cyclic number.

It is not a de Polignac number, because 56874991853 - 2¹⁰ = 56874990829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56874991853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56874921853) 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, 28437495926 + 28437495927.

It is an arithmetic number, because the mean of its divisors is an integer number (28437495927).

Almost surely, 2^56874991853 is an apocalyptic number.

It is an amenable number.

56874991853 is a deficient number, since it is larger than the sum of its proper divisors (1).

56874991853 is an equidigital number, since it uses as much as digits as its factorization.

56874991853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65318400, while the sum is 65.

The spelling of 56874991853 in words is "fifty-six billion, eight hundred seventy-four million, nine hundred ninety-one thousand, eight hundred fifty-three".