25669212 has 24 divisors (see below), whose sum is σ = 60048912. Its totient is φ = 8534400.

The previous prime is 25669211. The next prime is 25669229. The reversal of 25669212 is 21296652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25669211) 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, 2512 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (2502038).

Almost surely, 2^25669212 is an apocalyptic number.

It is an amenable number.

25669212 is an abundant number, since it is smaller than the sum of its proper divisors (34379700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25669212 is a wasteful number, since it uses less digits than its factorization.

25669212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509 (or 5507 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 25669212 is about 5066.4792509197. The cubic root of 25669212 is about 294.9878842099.

The spelling of 25669212 in words is "twenty-five million, six hundred sixty-nine thousand, two hundred twelve".