2556852243 has 32 divisors (see below), whose sum is σ = 3761759232. Its totient is φ = 1531891200.

The previous prime is 2556852239. The next prime is 2556852257. The reversal of 2556852243 is 3422586552.

It is not a de Polignac number, because 2556852243 - 2² = 2556852239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2556852195 and 2556852204.

It is not an unprimeable number, because it can be changed into a prime (2556852043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2076438 + ... + 2077668.

It is an arithmetic number, because the mean of its divisors is an integer number (117554976).

Almost surely, 2^2556852243 is an apocalyptic number.

2556852243 is a deficient number, since it is larger than the sum of its proper divisors (1204906989).

2556852243 is a wasteful number, since it uses less digits than its factorization.

2556852243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915.

The product of its digits is 576000, while the sum is 42.

The square root of 2556852243 is about 50565.3264896015. The cubic root of 2556852243 is about 1367.4198410502.

The spelling of 2556852243 in words is "two billion, five hundred fifty-six million, eight hundred fifty-two thousand, two hundred forty-three".