25231254112397 has 2 divisors, whose sum is σ = 25231254112398. Its totient is φ = 25231254112396.

The previous prime is 25231254112387. The next prime is 25231254112403. The reversal of 25231254112397 is 79321145213252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23360653557796 + 1870600554601 = 4833286^2 + 1367699^2 .

It is a cyclic number.

It is not a de Polignac number, because 25231254112397 - 2⁶ = 25231254112333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25231254112387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12615627056198 + 12615627056199.

It is an arithmetic number, because the mean of its divisors is an integer number (12615627056199).

Almost surely, 2^{25231254112397} is an apocalyptic number.

It is an amenable number.

25231254112397 is a deficient number, since it is larger than the sum of its proper divisors (1).

25231254112397 is an equidigital number, since it uses as much as digits as its factorization.

25231254112397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 47.

The spelling of 25231254112397 in words is "twenty-five trillion, two hundred thirty-one billion, two hundred fifty-four million, one hundred twelve thousand, three hundred ninety-seven".