25079489 has 4 divisors (see below), whose sum is σ = 25151700. Its totient is φ = 25007280.

The previous prime is 25079477. The next prime is 25079491. The reversal of 25079489 is 98497052.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6589489 + 18490000 = 2567^2 + 4300^2 .

It is a cyclic number.

It is not a de Polignac number, because 25079489 - 2²⁰ = 24030913 is a prime.

It is a super-2 number, since 2×25079489² = 1257961537002242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25079429) 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, 35582 + ... + 36279.

It is an arithmetic number, because the mean of its divisors is an integer number (6287925).

Almost surely, 2^25079489 is an apocalyptic number.

It is an amenable number.

25079489 is a deficient number, since it is larger than the sum of its proper divisors (72211).

25079489 is an equidigital number, since it uses as much as digits as its factorization.

25079489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72210.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 25079489 is about 5007.9425915240. The cubic root of 25079489 is about 292.7113489432.

The spelling of 25079489 in words is "twenty-five million, seventy-nine thousand, four hundred eighty-nine".