25302239 has 12 divisors (see below), whose sum is σ = 27814200. Its totient is φ = 22985088.

The previous prime is 25302223. The next prime is 25302241. The reversal of 25302239 is 93220352.

It is not a de Polignac number, because 25302239 - 2⁴ = 25302223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25302269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6872 + ... + 9890.

It is an arithmetic number, because the mean of its divisors is an integer number (2317850).

Almost surely, 2^25302239 is an apocalyptic number.

25302239 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

25302239 is a deficient number, since it is larger than the sum of its proper divisors (2511961).

25302239 is a wasteful number, since it uses less digits than its factorization.

25302239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082 (or 3065 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 25302239 is about 5030.1330996307. The cubic root of 25302239 is about 293.5753932002.

The spelling of 25302239 in words is "twenty-five million, three hundred two thousand, two hundred thirty-nine".