25676560557353 has 2 divisors, whose sum is σ = 25676560557354. Its totient is φ = 25676560557352.

The previous prime is 25676560557331. The next prime is 25676560557383. The reversal of 25676560557353 is 35375506567652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22639058834704 + 3037501722649 = 4758052^2 + 1742843^2 .

It is a cyclic number.

It is not a de Polignac number, because 25676560557353 - 2²⁴ = 25676543780137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25676560557353.

It is not a weakly prime, because it can be changed into another prime (25676560557313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12838280278676 + 12838280278677.

It is an arithmetic number, because the mean of its divisors is an integer number (12838280278677).

Almost surely, 2^{25676560557353} is an apocalyptic number.

It is an amenable number.

25676560557353 is a deficient number, since it is larger than the sum of its proper divisors (1).

25676560557353 is an equidigital number, since it uses as much as digits as its factorization.

25676560557353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 595350000, while the sum is 65.

The spelling of 25676560557353 in words is "twenty-five trillion, six hundred seventy-six billion, five hundred sixty million, five hundred fifty-seven thousand, three hundred fifty-three".