2556253198 has 16 divisors (see below), whose sum is σ = 4175370000. Its totient is φ = 1169102592.

The previous prime is 2556253187. The next prime is 2556253247. The reversal of 2556253198 is 8913526552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158723 + ... + 1160926.

It is an arithmetic number, because the mean of its divisors is an integer number (260960625).

Almost surely, 2^2556253198 is an apocalyptic number.

2556253198 is a deficient number, since it is larger than the sum of its proper divisors (1619116802).

2556253198 is a wasteful number, since it uses less digits than its factorization.

2556253198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2319699.

The product of its digits is 648000, while the sum is 46.

The square root of 2556253198 is about 50559.4026665664. The cubic root of 2556253198 is about 1367.3130417619.

The spelling of 2556253198 in words is "two billion, five hundred fifty-six million, two hundred fifty-three thousand, one hundred ninety-eight".