2556957079 has 2 divisors, whose sum is σ = 2556957080. Its totient is φ = 2556957078.

The previous prime is 2556957077. The next prime is 2556957101. The reversal of 2556957079 is 9707596552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2556957079 - 2¹ = 2556957077 is a prime.

Together with 2556957077, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2556957071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278478539 + 1278478540.

It is an arithmetic number, because the mean of its divisors is an integer number (1278478540).

Almost surely, 2^2556957079 is an apocalyptic number.

2556957079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556957079 is an equidigital number, since it uses as much as digits as its factorization.

2556957079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5953500, while the sum is 55.

The square root of 2556957079 is about 50566.3631181836. The cubic root of 2556957079 is about 1367.4385297677.

The spelling of 2556957079 in words is "two billion, five hundred fifty-six million, nine hundred fifty-seven thousand, seventy-nine".