25691452 has 12 divisors (see below), whose sum is σ = 45465840. Its totient is φ = 12701216.

The previous prime is 25691441. The next prime is 25691459. The reversal of 25691452 is 25419652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25691459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35728 + ... + 36439.

It is an arithmetic number, because the mean of its divisors is an integer number (3788820).

Almost surely, 2^25691452 is an apocalyptic number.

It is an amenable number.

25691452 is a deficient number, since it is larger than the sum of its proper divisors (19774388).

25691452 is a wasteful number, since it uses less digits than its factorization.

25691452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72260 (or 72258 counting only the distinct ones).

The product of its digits is 21600, while the sum is 34.

The square root of 25691452 is about 5068.6735937521. The cubic root of 25691452 is about 295.0730528645.

The spelling of 25691452 in words is "twenty-five million, six hundred ninety-one thousand, four hundred fifty-two".