25328315 has 4 divisors (see below), whose sum is σ = 30393984. Its totient is φ = 20262648.

The previous prime is 25328309. The next prime is 25328323. The reversal of 25328315 is 51382352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25328315 - 2⁸ = 25328059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532827 + ... + 2532836.

It is an arithmetic number, because the mean of its divisors is an integer number (7598496).

Almost surely, 2^25328315 is an apocalyptic number.

25328315 is a deficient number, since it is larger than the sum of its proper divisors (5065669).

25328315 is an equidigital number, since it uses as much as digits as its factorization.

25328315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065668.

The product of its digits is 7200, while the sum is 29.

The square root of 25328315 is about 5032.7244112906. The cubic root of 25328315 is about 293.6762096229.

The spelling of 25328315 in words is "twenty-five million, three hundred twenty-eight thousand, three hundred fifteen".