25869939 has 8 divisors (see below), whose sum is σ = 34516992. Its totient is φ = 17234760.

The previous prime is 25869923. The next prime is 25869947. The reversal of 25869939 is 93996852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25869939 - 2⁴ = 25869923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25869891 and 25869900.

It is not an unprimeable number, because it can be changed into a prime (25869979) 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, 5934 + ... + 9324.

It is an arithmetic number, because the mean of its divisors is an integer number (4314624).

Almost surely, 2^25869939 is an apocalyptic number.

25869939 is a deficient number, since it is larger than the sum of its proper divisors (8647053).

25869939 is a wasteful number, since it uses less digits than its factorization.

25869939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5937.

The product of its digits is 1049760, while the sum is 51.

The square root of 25869939 is about 5086.2499938560. The cubic root of 25869939 is about 295.7547998288.

The spelling of 25869939 in words is "twenty-five million, eight hundred sixty-nine thousand, nine hundred thirty-nine".