25371289 has 4 divisors (see below), whose sum is σ = 26706640. Its totient is φ = 24035940.

The previous prime is 25371287. The next prime is 25371343. The reversal of 25371289 is 98217352.

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 25371289 - 2¹ = 25371287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25371287) 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, 667647 + ... + 667684.

It is an arithmetic number, because the mean of its divisors is an integer number (6676660).

Almost surely, 2^25371289 is an apocalyptic number.

It is an amenable number.

25371289 is a deficient number, since it is larger than the sum of its proper divisors (1335351).

25371289 is a wasteful number, since it uses less digits than its factorization.

25371289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335350.

The product of its digits is 30240, while the sum is 37.

The square root of 25371289 is about 5036.9920587589. The cubic root of 25371289 is about 293.8422071181.

The spelling of 25371289 in words is "twenty-five million, three hundred seventy-one thousand, two hundred eighty-nine".