25869212 has 12 divisors (see below), whose sum is σ = 45312456. Its totient is φ = 12922800.

The previous prime is 25869167. The next prime is 25869269. The reversal of 25869212 is 21296852.

It is a happy number.

It is a super-2 number, since 2×25869212² = 1338432259001888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3587 + ... + 8037.

It is an arithmetic number, because the mean of its divisors is an integer number (3776038).

Almost surely, 2^25869212 is an apocalyptic number.

It is an amenable number.

25869212 is a deficient number, since it is larger than the sum of its proper divisors (19443244).

25869212 is a wasteful number, since it uses less digits than its factorization.

25869212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908 (or 5906 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 25869212 is about 5086.1785261628. The cubic root of 25869212 is about 295.7520293577.

The spelling of 25869212 in words is "twenty-five million, eight hundred sixty-nine thousand, two hundred twelve".