2560970557 has 2 divisors, whose sum is σ = 2560970558. Its totient is φ = 2560970556.

The previous prime is 2560970527. The next prime is 2560970567. The reversal of 2560970557 is 7550790652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1292114916 + 1268855641 = 35946^2 + 35621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2560970557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2560970507) 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 as a sum of consecutive naturals, namely, 1280485278 + 1280485279.

It is an arithmetic number, because the mean of its divisors is an integer number (1280485279).

Almost surely, 2^2560970557 is an apocalyptic number.

It is an amenable number.

2560970557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560970557 is an equidigital number, since it uses as much as digits as its factorization.

2560970557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 661500, while the sum is 46.

The square root of 2560970557 is about 50606.0328123041. The cubic root of 2560970557 is about 1368.1536135324.

The spelling of 2560970557 in words is "two billion, five hundred sixty million, nine hundred seventy thousand, five hundred fifty-seven".