2557315311 has 4 divisors (see below), whose sum is σ = 3409753752. Its totient is φ = 1704876872.

The previous prime is 2557315303. The next prime is 2557315331. The reversal of 2557315311 is 1135137552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2557315311 - 2³ = 2557315303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2557315331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426219216 + ... + 426219221.

It is an arithmetic number, because the mean of its divisors is an integer number (852438438).

Almost surely, 2^2557315311 is an apocalyptic number.

2557315311 is a deficient number, since it is larger than the sum of its proper divisors (852438441).

2557315311 is an equidigital number, since it uses as much as digits as its factorization.

2557315311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852438440.

The product of its digits is 15750, while the sum is 33.

The square root of 2557315311 is about 50569.9051907357. The cubic root of 2557315311 is about 1367.5023865773.

The spelling of 2557315311 in words is "two billion, five hundred fifty-seven million, three hundred fifteen thousand, three hundred eleven".