25343204064257 has 2 divisors, whose sum is σ = 25343204064258. Its totient is φ = 25343204064256.

The previous prime is 25343204064251. The next prime is 25343204064259. The reversal of 25343204064257 is 75246040234352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14663929081201 + 10679274983056 = 3829351^2 + 3267916^2 .

It is a cyclic number.

It is not a de Polignac number, because 25343204064257 - 2⁴⁴ = 7751018019841 is a prime.

Together with 25343204064259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25343204064251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12671602032128 + 12671602032129.

It is an arithmetic number, because the mean of its divisors is an integer number (12671602032129).

Almost surely, 2^{25343204064257} is an apocalyptic number.

It is an amenable number.

25343204064257 is a deficient number, since it is larger than the sum of its proper divisors (1).

25343204064257 is an equidigital number, since it uses as much as digits as its factorization.

25343204064257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 47.

The spelling of 25343204064257 in words is "twenty-five trillion, three hundred forty-three billion, two hundred four million, sixty-four thousand, two hundred fifty-seven".