25396669273 has 2 divisors, whose sum is σ = 25396669274. Its totient is φ = 25396669272.

The previous prime is 25396669247. The next prime is 25396669297. The reversal of 25396669273 is 37296669352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24734481984 + 662187289 = 157272^2 + 25733^2 .

It is a cyclic number.

It is not a de Polignac number, because 25396669273 - 2⁵ = 25396669241 is a prime.

It is not a weakly prime, because it can be changed into another prime (25396669673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12698334636 + 12698334637.

It is an arithmetic number, because the mean of its divisors is an integer number (12698334637).

Almost surely, 2^25396669273 is an apocalyptic number.

It is an amenable number.

25396669273 is a deficient number, since it is larger than the sum of its proper divisors (1).

25396669273 is an equidigital number, since it uses as much as digits as its factorization.

25396669273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22044960, while the sum is 58.

The spelling of 25396669273 in words is "twenty-five billion, three hundred ninety-six million, six hundred sixty-nine thousand, two hundred seventy-three".