25267889 has 4 divisors (see below), whose sum is σ = 25287024. Its totient is φ = 25248756.

The previous prime is 25267873. The next prime is 25267897. The reversal of 25267889 is 98876252.

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 25267889 - 2⁴ = 25267873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25267829) 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 3 ways as a sum of consecutive naturals, for example, 7427 + ... + 10280.

It is an arithmetic number, because the mean of its divisors is an integer number (6321756).

Almost surely, 2^25267889 is an apocalyptic number.

It is an amenable number.

25267889 is a deficient number, since it is larger than the sum of its proper divisors (19135).

25267889 is a wasteful number, since it uses less digits than its factorization.

25267889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19134.

The product of its digits is 483840, while the sum is 47.

The square root of 25267889 is about 5026.7175174263. The cubic root of 25267889 is about 293.4424816207.

The spelling of 25267889 in words is "twenty-five million, two hundred sixty-seven thousand, eight hundred eighty-nine".