25195853 has 16 divisors (see below), whose sum is σ = 28095984. Its totient is φ = 22487040.

The previous prime is 25195823. The next prime is 25195871. The reversal of 25195853 is 35859152.

It can be written as a sum of positive squares in 8 ways, for example, as 3087049 + 22108804 = 1757^2 + 4702^2 .

It is a cyclic number.

It is not a de Polignac number, because 25195853 - 2⁶ = 25195789 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 (25195813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25301 + ... + 26277.

It is an arithmetic number, because the mean of its divisors is an integer number (1755999).

Almost surely, 2^25195853 is an apocalyptic number.

It is an amenable number.

25195853 is a deficient number, since it is larger than the sum of its proper divisors (2900131).

25195853 is a wasteful number, since it uses less digits than its factorization.

25195853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its digits is 54000, while the sum is 38.

The square root of 25195853 is about 5019.5470911229. The cubic root of 25195853 is about 293.1633586825.

The spelling of 25195853 in words is "twenty-five million, one hundred ninety-five thousand, eight hundred fifty-three".