2557368223 has 2 divisors, whose sum is σ = 2557368224. Its totient is φ = 2557368222.

The previous prime is 2557368221. The next prime is 2557368227. The reversal of 2557368223 is 3228637552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2557368223 - 2¹ = 2557368221 is a prime.

Together with 2557368221, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2557368223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557368221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278684111 + 1278684112.

It is an arithmetic number, because the mean of its divisors is an integer number (1278684112).

Almost surely, 2^2557368223 is an apocalyptic number.

2557368223 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557368223 is an equidigital number, since it uses as much as digits as its factorization.

2557368223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 43.

The square root of 2557368223 is about 50570.4283450318. The cubic root of 2557368223 is about 1367.5118179247.

The spelling of 2557368223 in words is "two billion, five hundred fifty-seven million, three hundred sixty-eight thousand, two hundred twenty-three".