25320339 has 18 divisors (see below), whose sum is σ = 40202708. Its totient is φ = 15345000.

The previous prime is 25320319. The next prime is 25320349. The reversal of 25320339 is 93302352.

25320339 is a `hidden beast` number, since 2 + 5 + 320 + 339 = 666.

It is not a de Polignac number, because 25320339 - 2¹⁵ = 25287571 is a prime.

It is a super-3 number, since 3×25320339³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25320319) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10537 + ... + 12714.

Almost surely, 2^25320339 is an apocalyptic number.

25320339 is a deficient number, since it is larger than the sum of its proper divisors (14882369).

25320339 is a wasteful number, since it uses less digits than its factorization.

25320339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23279 (or 23265 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 25320339 is about 5031.9319351517. The cubic root of 25320339 is about 293.6453797346.

The spelling of 25320339 in words is "twenty-five million, three hundred twenty thousand, three hundred thirty-nine".