25298089 has 4 divisors (see below), whose sum is σ = 25453456. Its totient is φ = 25142724.

The previous prime is 25298083. The next prime is 25298099. The reversal of 25298089 is 98089252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25298089 - 2¹¹ = 25296041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25298083) 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, 77439 + ... + 77764.

It is an arithmetic number, because the mean of its divisors is an integer number (6363364).

Almost surely, 2^25298089 is an apocalyptic number.

It is an amenable number.

25298089 is a deficient number, since it is larger than the sum of its proper divisors (155367).

25298089 is a wasteful number, since it uses less digits than its factorization.

25298089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155366.

The product of its (nonzero) digits is 103680, while the sum is 43.

The square root of 25298089 is about 5029.7205687791. The cubic root of 25298089 is about 293.5593418605.

The spelling of 25298089 in words is "twenty-five million, two hundred ninety-eight thousand, eighty-nine".