25316189 has 4 divisors (see below), whose sum is σ = 26648640. Its totient is φ = 23983740.

The previous prime is 25316173. The next prime is 25316191. The reversal of 25316189 is 98161352.

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 25316189 - 2⁴ = 25316173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25316089) 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, 666197 + ... + 666234.

It is an arithmetic number, because the mean of its divisors is an integer number (6662160).

Almost surely, 2^25316189 is an apocalyptic number.

It is an amenable number.

25316189 is a deficient number, since it is larger than the sum of its proper divisors (1332451).

25316189 is a wasteful number, since it uses less digits than its factorization.

25316189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332450.

The product of its digits is 12960, while the sum is 35.

The square root of 25316189 is about 5031.5195517855. The cubic root of 25316189 is about 293.6293360459.

The spelling of 25316189 in words is "twenty-five million, three hundred sixteen thousand, one hundred eighty-nine".