25332989 has 4 divisors (see below), whose sum is σ = 27636000. Its totient is φ = 23029980.

The previous prime is 25332943. The next prime is 25332991. The reversal of 25332989 is 98923352.

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 25332989 - 2²⁴ = 8555773 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 (25332919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1151489 + ... + 1151510.

It is an arithmetic number, because the mean of its divisors is an integer number (6909000).

Almost surely, 2^25332989 is an apocalyptic number.

It is an amenable number.

25332989 is a deficient number, since it is larger than the sum of its proper divisors (2303011).

25332989 is a wasteful number, since it uses less digits than its factorization.

25332989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303010.

The product of its digits is 116640, while the sum is 41.

The square root of 25332989 is about 5033.1887506828. The cubic root of 25332989 is about 293.6942731771.

The spelling of 25332989 in words is "twenty-five million, three hundred thirty-two thousand, nine hundred eighty-nine".