25253839 has 24 divisors (see below), whose sum is σ = 29250720. Its totient is φ = 21745152.

The previous prime is 25253821. The next prime is 25253843. The reversal of 25253839 is 93835252.

It is not a de Polignac number, because 25253839 - 2⁵ = 25253807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25253798 and 25253807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283707 + ... + 283795.

It is an arithmetic number, because the mean of its divisors is an integer number (1218780).

Almost surely, 2^25253839 is an apocalyptic number.

25253839 is a deficient number, since it is larger than the sum of its proper divisors (3996881).

25253839 is a wasteful number, since it uses less digits than its factorization.

25253839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 198 counting only the distinct ones).

The product of its digits is 64800, while the sum is 37.

The square root of 25253839 is about 5025.3197908193. The cubic root of 25253839 is about 293.3880827845.

The spelling of 25253839 in words is "twenty-five million, two hundred fifty-three thousand, eight hundred thirty-nine".