25886489 has 2 divisors, whose sum is σ = 25886490. Its totient is φ = 25886488.

The previous prime is 25886479. The next prime is 25886501. The reversal of 25886489 is 98468852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25806400 + 80089 = 5080^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 25886489 - 2⁸ = 25886233 is a prime.

It is a super-2 number, since 2×25886489² = 1340220625494242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25886429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12943244 + 12943245.

It is an arithmetic number, because the mean of its divisors is an integer number (12943245).

Almost surely, 2^25886489 is an apocalyptic number.

It is an amenable number.

25886489 is a deficient number, since it is larger than the sum of its proper divisors (1).

25886489 is an equidigital number, since it uses as much as digits as its factorization.

25886489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 50.

The square root of 25886489 is about 5087.8766691027. The cubic root of 25886489 is about 295.8178549772.

The spelling of 25886489 in words is "twenty-five million, eight hundred eighty-six thousand, four hundred eighty-nine".