25325989 has 8 divisors (see below), whose sum is σ = 27434232. Its totient is φ = 23240640.

The previous prime is 25325981. The next prime is 25326023. The reversal of 25325989 is 98952352.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12602500 + 12723489 = 3550^2 + 3567^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25325989 - 2³ = 25325981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25325981) 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 7 ways as a sum of consecutive naturals, for example, 3382 + ... + 7879.

It is an arithmetic number, because the mean of its divisors is an integer number (3429279).

Almost surely, 2^25325989 is an apocalyptic number.

It is an amenable number.

25325989 is a deficient number, since it is larger than the sum of its proper divisors (2108243).

25325989 is a wasteful number, since it uses less digits than its factorization.

25325989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11447.

The product of its digits is 194400, while the sum is 43.

The square root of 25325989 is about 5032.4933184258. The cubic root of 25325989 is about 293.6672195292.

The spelling of 25325989 in words is "twenty-five million, three hundred twenty-five thousand, nine hundred eighty-nine".