2560825517 has 2 divisors, whose sum is σ = 2560825518. Its totient is φ = 2560825516.

The previous prime is 2560825513. The next prime is 2560825573. The reversal of 2560825517 is 7155280652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1809736681 + 751088836 = 42541^2 + 27406^2 .

It is a cyclic number.

It is not a de Polignac number, because 2560825517 - 2² = 2560825513 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2560825513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1280412758 + 1280412759.

It is an arithmetic number, because the mean of its divisors is an integer number (1280412759).

Almost surely, 2^2560825517 is an apocalyptic number.

It is an amenable number.

2560825517 is a deficient number, since it is larger than the sum of its proper divisors (1).

2560825517 is an equidigital number, since it uses as much as digits as its factorization.

2560825517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 41.

The square root of 2560825517 is about 50604.5997612865. The cubic root of 2560825517 is about 1368.1277846859.

The spelling of 2560825517 in words is "two billion, five hundred sixty million, eight hundred twenty-five thousand, five hundred seventeen".