2566522313 has 2 divisors, whose sum is σ = 2566522314. Its totient is φ = 2566522312.

The previous prime is 2566522307. The next prime is 2566522339. The reversal of 2566522313 is 3132256652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1739557264 + 826965049 = 41708^2 + 28757^2 .

It is a cyclic number.

It is not a de Polignac number, because 2566522313 - 2¹⁰ = 2566521289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2566522913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283261156 + 1283261157.

It is an arithmetic number, because the mean of its divisors is an integer number (1283261157).

Almost surely, 2^2566522313 is an apocalyptic number.

It is an amenable number.

2566522313 is a deficient number, since it is larger than the sum of its proper divisors (1).

2566522313 is an equidigital number, since it uses as much as digits as its factorization.

2566522313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 35.

The square root of 2566522313 is about 50660.8558257754. The cubic root of 2566522313 is about 1369.1415427519.

Adding to 2566522313 its reverse (3132256652), we get a palindrome (5698778965).

The spelling of 2566522313 in words is "two billion, five hundred sixty-six million, five hundred twenty-two thousand, three hundred thirteen".