2556566192 has 20 divisors (see below), whose sum is σ = 4972189200. Its totient is φ = 1273420608.

The previous prime is 2556566191. The next prime is 2556566197. The reversal of 2556566192 is 2916656552.

It is not an unprimeable number, because it can be changed into a prime (2556566191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299567 + ... + 307982.

It is an arithmetic number, because the mean of its divisors is an integer number (248609460).

Almost surely, 2^2556566192 is an apocalyptic number.

It is an amenable number.

2556566192 is a deficient number, since it is larger than the sum of its proper divisors (2415623008).

2556566192 is a wasteful number, since it uses less digits than its factorization.

2556566192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607820 (or 607814 counting only the distinct ones).

The product of its digits is 972000, while the sum is 47.

The square root of 2556566192 is about 50562.4978813349. The cubic root of 2556566192 is about 1367.3688452211.

The spelling of 2556566192 in words is "two billion, five hundred fifty-six million, five hundred sixty-six thousand, one hundred ninety-two".