25195 has 4 divisors (see below), whose sum is σ = 30240. Its totient is φ = 20152.

The previous prime is 25189. The next prime is 25219. The reversal of 25195 is 59152.

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 25195 - 2⁵ = 25163 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 13.

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, 2515 + ... + 2524.

It is an arithmetic number, because the mean of its divisors is an integer number (7560).

2²⁵¹⁹⁵ is an apocalyptic number.

25195 is a deficient number, since it is larger than the sum of its proper divisors (5045).

25195 is an equidigital number, since it uses as much as digits as its factorization.

25195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5044.

The product of its digits is 450, while the sum is 22.

The square root of 25195 is about 158.7293293629. The cubic root of 25195 is about 29.3160050318.

The spelling of 25195 in words is "twenty-five thousand, one hundred ninety-five".