25641259 has 12 divisors (see below), whose sum is σ = 30635904. Its totient is φ = 21382704.

The previous prime is 25641233. The next prime is 25641293. The reversal of 25641259 is 95214652.

It is a happy number.

It is not a de Polignac number, because 25641259 - 2⁵ = 25641227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25641859) 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 in 11 ways as a sum of consecutive naturals, for example, 5259 + ... + 8884.

It is an arithmetic number, because the mean of its divisors is an integer number (2552992).

Almost surely, 2^25641259 is an apocalyptic number.

25641259 is a deficient number, since it is larger than the sum of its proper divisors (4994645).

25641259 is a wasteful number, since it uses less digits than its factorization.

25641259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14194 (or 14187 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 25641259 is about 5063.7198777184. The cubic root of 25641259 is about 294.8807676730.

The spelling of 25641259 in words is "twenty-five million, six hundred forty-one thousand, two hundred fifty-nine".