2556281327 has 2 divisors, whose sum is σ = 2556281328. Its totient is φ = 2556281326.

The previous prime is 2556281317. The next prime is 2556281353. The reversal of 2556281327 is 7231826552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2556281327 - 2¹⁰ = 2556280303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2556281317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278140663 + 1278140664.

It is an arithmetic number, because the mean of its divisors is an integer number (1278140664).

Almost surely, 2^2556281327 is an apocalyptic number.

2556281327 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556281327 is an equidigital number, since it uses as much as digits as its factorization.

2556281327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 41.

The square root of 2556281327 is about 50559.6808435338. The cubic root of 2556281327 is about 1367.3180570460.

The spelling of 2556281327 in words is "two billion, five hundred fifty-six million, two hundred eighty-one thousand, three hundred twenty-seven".