25936495902697 has 2 divisors, whose sum is σ = 25936495902698. Its totient is φ = 25936495902696.

The previous prime is 25936495902689. The next prime is 25936495902727. The reversal of 25936495902697 is 79620959463952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13581664579561 + 12354831323136 = 3685331^2 + 3514944^2 .

It is a cyclic number.

It is not a de Polignac number, because 25936495902697 - 2³ = 25936495902689 is a prime.

It is not a weakly prime, because it can be changed into another prime (25936495902617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12968247951348 + 12968247951349.

It is an arithmetic number, because the mean of its divisors is an integer number (12968247951349).

Almost surely, 2^{25936495902697} is an apocalyptic number.

It is an amenable number.

25936495902697 is a deficient number, since it is larger than the sum of its proper divisors (1).

25936495902697 is an equidigital number, since it uses as much as digits as its factorization.

25936495902697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1984046400, while the sum is 76.

The spelling of 25936495902697 in words is "twenty-five trillion, nine hundred thirty-six billion, four hundred ninety-five million, nine hundred two thousand, six hundred ninety-seven".