25873839 has 24 divisors (see below), whose sum is σ = 39836160. Its totient is φ = 16135632.

The previous prime is 25873759. The next prime is 25873879. The reversal of 25873839 is 93837852.

25873839 is a `hidden beast` number, since 2 + 587 + 38 + 39 = 666.

It is not a de Polignac number, because 25873839 - 2⁹ = 25873327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25873794 and 25873803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25873879) 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, 13282 + ... + 15104.

It is an arithmetic number, because the mean of its divisors is an integer number (1659840).

Almost surely, 2^25873839 is an apocalyptic number.

25873839 is a deficient number, since it is larger than the sum of its proper divisors (13962321).

25873839 is a wasteful number, since it uses less digits than its factorization.

25873839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931 (or 1928 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 25873839 is about 5086.6333659897. The cubic root of 25873839 is about 295.7696611673.

The spelling of 25873839 in words is "twenty-five million, eight hundred seventy-three thousand, eight hundred thirty-nine".