195853925 has 24 divisors (see below), whose sum is σ = 251207880. Its totient is φ = 151372800.

The previous prime is 195853873. The next prime is 195853927. The reversal of 195853925 is 529358591.

It can be written as a sum of positive squares in 12 ways, for example, as 142826401 + 53027524 = 11951^2 + 7282^2 .

It is not a de Polignac number, because 195853925 - 2²⁰ = 194805349 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 195853925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195853927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110849 + ... + 112601.

It is an arithmetic number, because the mean of its divisors is an integer number (10466995).

Almost surely, 2^195853925 is an apocalyptic number.

It is an amenable number.

195853925 is a deficient number, since it is larger than the sum of its proper divisors (55353955).

195853925 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (195853924) it forms an eRAP, since the sums of their prime factors are consecutive (1912 and 1913).

195853925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1913 (or 1908 counting only the distinct ones).

The product of its digits is 486000, while the sum is 47.

The square root of 195853925 is about 13994.7820633263. The cubic root of 195853925 is about 580.7342316458.

The spelling of 195853925 in words is "one hundred ninety-five million, eight hundred fifty-three thousand, nine hundred twenty-five".