25621252 has 12 divisors (see below), whose sum is σ = 46283776. Its totient is φ = 12397320.

The previous prime is 25621237. The next prime is 25621259. The reversal of 25621252 is 25212652.

It is a happy number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (25621259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103188 + ... + 103435.

Almost surely, 2^25621252 is an apocalyptic number.

It is an amenable number.

25621252 is a deficient number, since it is larger than the sum of its proper divisors (20662524).

25621252 is a wasteful number, since it uses less digits than its factorization.

25621252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206658 (or 206656 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 25621252 is about 5061.7439682386. The cubic root of 25621252 is about 294.8040525811.

The spelling of 25621252 in words is "twenty-five million, six hundred twenty-one thousand, two hundred fifty-two".