25838459 has 2 divisors, whose sum is σ = 25838460. Its totient is φ = 25838458.

The previous prime is 25838443. The next prime is 25838497. The reversal of 25838459 is 95483852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25838459 - 2⁴ = 25838443 is a prime.

It is not a weakly prime, because it can be changed into another prime (25831459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12919229 + 12919230.

It is an arithmetic number, because the mean of its divisors is an integer number (12919230).

Almost surely, 2^25838459 is an apocalyptic number.

25838459 is a deficient number, since it is larger than the sum of its proper divisors (1).

25838459 is an equidigital number, since it uses as much as digits as its factorization.

25838459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 44.

The square root of 25838459 is about 5083.1544340104. The cubic root of 25838459 is about 295.6347874326.

The spelling of 25838459 in words is "twenty-five million, eight hundred thirty-eight thousand, four hundred fifty-nine".