2556794264 has 32 divisors (see below), whose sum is σ = 5087232000. Its totient is φ = 1202083872.

The previous prime is 2556794209. The next prime is 2556794269. The reversal of 2556794264 is 4624976552.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2556794269) 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, 106904 + ... + 128615.

It is an arithmetic number, because the mean of its divisors is an integer number (158976000).

Almost surely, 2^2556794264 is an apocalyptic number.

It is an amenable number.

2556794264 is a deficient number, since it is larger than the sum of its proper divisors (2530437736).

2556794264 is a wasteful number, since it uses less digits than its factorization.

2556794264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235607 (or 235603 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 50.

The square root of 2556794264 is about 50564.7531784740. The cubic root of 2556794264 is about 1367.4095051337.

The spelling of 2556794264 in words is "two billion, five hundred fifty-six million, seven hundred ninety-four thousand, two hundred sixty-four".