25253389 has 4 divisors (see below), whose sum is σ = 28861024. Its totient is φ = 21645756.

The previous prime is 25253369. The next prime is 25253399. The reversal of 25253389 is 98335252.

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-25253389 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 (25253309) 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, 1803807 + ... + 1803820.

It is an arithmetic number, because the mean of its divisors is an integer number (7215256).

Almost surely, 2^25253389 is an apocalyptic number.

It is an amenable number.

25253389 is a deficient number, since it is larger than the sum of its proper divisors (3607635).

25253389 is an equidigital number, since it uses as much as digits as its factorization.

25253389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607634.

The product of its digits is 64800, while the sum is 37.

The square root of 25253389 is about 5025.2750173498. The cubic root of 25253389 is about 293.3863401396.

The spelling of 25253389 in words is "twenty-five million, two hundred fifty-three thousand, three hundred eighty-nine".