2557790311 has 2 divisors, whose sum is σ = 2557790312. Its totient is φ = 2557790310.

The previous prime is 2557790309. The next prime is 2557790383. The reversal of 2557790311 is 1130977552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2557790311 - 2¹ = 2557790309 is a prime.

Together with 2557790309, 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 (2557794311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278895155 + 1278895156.

It is an arithmetic number, because the mean of its divisors is an integer number (1278895156).

Almost surely, 2^2557790311 is an apocalyptic number.

2557790311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557790311 is an equidigital number, since it uses as much as digits as its factorization.

2557790311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 40.

The square root of 2557790311 is about 50574.6014418305. The cubic root of 2557790311 is about 1367.5870487252.

The spelling of 2557790311 in words is "two billion, five hundred fifty-seven million, seven hundred ninety thousand, three hundred eleven".