25989319 has 2 divisors, whose sum is σ = 25989320. Its totient is φ = 25989318.

The previous prime is 25989317. The next prime is 25989331. The reversal of 25989319 is 91398952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25989319 - 2¹ = 25989317 is a prime.

It is a super-2 number, since 2×25989319² = 1350889404167522, which contains 22 as substring.

Together with 25989317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25989317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12994659 + 12994660.

It is an arithmetic number, because the mean of its divisors is an integer number (12994660).

Almost surely, 2^25989319 is an apocalyptic number.

25989319 is a deficient number, since it is larger than the sum of its proper divisors (1).

25989319 is an equidigital number, since it uses as much as digits as its factorization.

25989319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 46.

The square root of 25989319 is about 5097.9720477853. The cubic root of 25989319 is about 296.2090340786.

The spelling of 25989319 in words is "twenty-five million, nine hundred eighty-nine thousand, three hundred nineteen".