25343202052991 has 2 divisors, whose sum is σ = 25343202052992. Its totient is φ = 25343202052990.

The previous prime is 25343202052873. The next prime is 25343202053009. The reversal of 25343202052991 is 19925020234352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25343202052991 - 2¹⁸ = 25343201790847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25343202012991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671601026495 + 12671601026496.

It is an arithmetic number, because the mean of its divisors is an integer number (12671601026496).

Almost surely, 2^{25343202052991} is an apocalyptic number.

25343202052991 is a deficient number, since it is larger than the sum of its proper divisors (1).

25343202052991 is an equidigital number, since it uses as much as digits as its factorization.

25343202052991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 25343202052991 in words is "twenty-five trillion, three hundred forty-three billion, two hundred two million, fifty-two thousand, nine hundred ninety-one".