2557530259 has 2 divisors, whose sum is σ = 2557530260. Its totient is φ = 2557530258.

The previous prime is 2557530247. The next prime is 2557530277. The reversal of 2557530259 is 9520357552.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2557530259 is a prime.

It is a super-2 number, since 2×2557530259² = 13081922051401214162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2557530229) 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, 1278765129 + 1278765130.

It is an arithmetic number, because the mean of its divisors is an integer number (1278765130).

Almost surely, 2^2557530259 is an apocalyptic number.

2557530259 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557530259 is an equidigital number, since it uses as much as digits as its factorization.

2557530259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472500, while the sum is 43.

The square root of 2557530259 is about 50572.0304021897. The cubic root of 2557530259 is about 1367.5406993692.

The spelling of 2557530259 in words is "two billion, five hundred fifty-seven million, five hundred thirty thousand, two hundred fifty-nine".