25253489 has 4 divisors (see below), whose sum is σ = 26582640. Its totient is φ = 23924340.

The previous prime is 25253479. The next prime is 25253509. The reversal of 25253489 is 98435252.

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 a de Polignac number, because none of the positive numbers 2^k-25253489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25253479) 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, 664547 + ... + 664584.

It is an arithmetic number, because the mean of its divisors is an integer number (6645660).

Almost surely, 2^25253489 is an apocalyptic number.

It is an amenable number.

25253489 is a deficient number, since it is larger than the sum of its proper divisors (1329151).

25253489 is a wasteful number, since it uses less digits than its factorization.

25253489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329150.

The product of its digits is 86400, while the sum is 38.

The square root of 25253489 is about 5025.2849670442. The cubic root of 25253489 is about 293.3867273958.

The spelling of 25253489 in words is "twenty-five million, two hundred fifty-three thousand, four hundred eighty-nine".