2557497118 has 16 divisors (see below), whose sum is σ = 4210061184. Its totient is φ = 1155535960.

The previous prime is 2557497113. The next prime is 2557497127. The reversal of 2557497118 is 8117947552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557497113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344380 + ... + 351727.

It is an arithmetic number, because the mean of its divisors is an integer number (263128824).

Almost surely, 2^2557497118 is an apocalyptic number.

2557497118 is a deficient number, since it is larger than the sum of its proper divisors (1652564066).

2557497118 is a wasteful number, since it uses less digits than its factorization.

2557497118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696287.

The product of its digits is 705600, while the sum is 49.

The square root of 2557497118 is about 50571.7027397734. The cubic root of 2557497118 is about 1367.5347923864.

The spelling of 2557497118 in words is "two billion, five hundred fifty-seven million, four hundred ninety-seven thousand, one hundred eighteen".