25039 has 8 divisors (see below), whose sum is σ = 29600. Its totient is φ = 21168.

The previous prime is 25037. The next prime is 25057. The reversal of 25039 is 93052.

It is not a de Polignac number, because 25039 - 2¹ = 25037 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13 and base 15.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307 + ... + 379.

It is an arithmetic number, because the mean of its divisors is an integer number (3700).

2²⁵⁰³⁹ is an apocalyptic number.

25039 is a deficient number, since it is larger than the sum of its proper divisors (4561).

25039 is an frugal number, since it uses more digits than its factorization.

25039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 80 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 25039 is about 158.2371637764. The cubic root of 25039 is about 29.2553743747.

It can be divided in two parts, 250 and 39, that added together give a square (289 = 17²).

The spelling of 25039 in words is "twenty-five thousand, thirty-nine".