25998119938523 has 2 divisors, whose sum is σ = 25998119938524. Its totient is φ = 25998119938522.

The previous prime is 25998119938451. The next prime is 25998119938591. The reversal of 25998119938523 is 32583991189952.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25998119938523 - 2¹² = 25998119934427 is a prime.

It is not a weakly prime, because it can be changed into another prime (25998119938823) 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, 12999059969261 + 12999059969262.

It is an arithmetic number, because the mean of its divisors is an integer number (12999059969262).

Almost surely, 2^{25998119938523} is an apocalyptic number.

25998119938523 is a deficient number, since it is larger than the sum of its proper divisors (1).

25998119938523 is an equidigital number, since it uses as much as digits as its factorization.

25998119938523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 377913600, while the sum is 74.

The spelling of 25998119938523 in words is "twenty-five trillion, nine hundred ninety-eight billion, one hundred nineteen million, nine hundred thirty-eight thousand, five hundred twenty-three".