2557298689 has 16 divisors (see below), whose sum is σ = 2831014080. Its totient is φ = 2290680000.

The previous prime is 2557298683. The next prime is 2557298693. The reversal of 2557298689 is 9868927552.

It is not a de Polignac number, because 2557298689 - 2⁵ = 2557298657 is a prime.

It is a super-2 number, since 2×2557298689² = 13079553169522237442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2557298683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228967 + ... + 239875.

It is an arithmetic number, because the mean of its divisors is an integer number (176938380).

Almost surely, 2^2557298689 is an apocalyptic number.

It is an amenable number.

2557298689 is a deficient number, since it is larger than the sum of its proper divisors (273715391).

2557298689 is a wasteful number, since it uses less digits than its factorization.

2557298689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11232.

The product of its digits is 21772800, while the sum is 61.

The square root of 2557298689 is about 50569.7408437101. The cubic root of 2557298689 is about 1367.4994237470.

The spelling of 2557298689 in words is "two billion, five hundred fifty-seven million, two hundred ninety-eight thousand, six hundred eighty-nine".