25873239 has 16 divisors (see below), whose sum is σ = 39502080. Its totient is φ = 14756160.

The previous prime is 25873219. The next prime is 25873241. The reversal of 25873239 is 93237852.

It is not a de Polignac number, because 25873239 - 2¹⁵ = 25840471 is a prime.

It is a super-2 number, since 2×25873239² = 1338848992702242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25873197 and 25873206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25873219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15172 + ... + 16790.

It is an arithmetic number, because the mean of its divisors is an integer number (2468880).

Almost surely, 2^25873239 is an apocalyptic number.

25873239 is a deficient number, since it is larger than the sum of its proper divisors (13628841).

25873239 is a wasteful number, since it uses less digits than its factorization.

25873239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390.

The product of its digits is 90720, while the sum is 39.

The square root of 25873239 is about 5086.5743875422. The cubic root of 25873239 is about 295.7673749048.

The spelling of 25873239 in words is "twenty-five million, eight hundred seventy-three thousand, two hundred thirty-nine".