25943259 has 4 divisors (see below), whose sum is σ = 34591016. Its totient is φ = 17295504.

The previous prime is 25943237. The next prime is 25943261. The reversal of 25943259 is 95234952.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25943259 - 2⁷ = 25943131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25943209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4323874 + ... + 4323879.

It is an arithmetic number, because the mean of its divisors is an integer number (8647754).

Almost surely, 2^25943259 is an apocalyptic number.

25943259 is a deficient number, since it is larger than the sum of its proper divisors (8647757).

25943259 is an equidigital number, since it uses as much as digits as its factorization.

25943259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8647756.

The product of its digits is 97200, while the sum is 39.

The square root of 25943259 is about 5093.4525618680. The cubic root of 25943259 is about 296.0339434838.

The spelling of 25943259 in words is "twenty-five million, nine hundred forty-three thousand, two hundred fifty-nine".