195859925 has 12 divisors (see below), whose sum is σ = 243039876. Its totient is φ = 156576000.

The previous prime is 195859921. The next prime is 195859933. The reversal of 195859925 is 529958591.

It can be written as a sum of positive squares in 6 ways, for example, as 27889 + 195832036 = 167^2 + 13994^2 .

It is not a de Polignac number, because 195859925 - 2² = 195859921 is a prime.

It is a super-2 number, since 2×195859925² = 76722220442011250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195859921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68525 + ... + 71325.

It is an arithmetic number, because the mean of its divisors is an integer number (20253323).

Almost surely, 2^195859925 is an apocalyptic number.

It is an amenable number.

195859925 is a deficient number, since it is larger than the sum of its proper divisors (47179951).

195859925 is a wasteful number, since it uses less digits than its factorization.

195859925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5608 (or 5603 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 53.

The square root of 195859925 is about 13994.9964272950. The cubic root of 195859925 is about 580.7401618645.

The spelling of 195859925 in words is "one hundred ninety-five million, eight hundred fifty-nine thousand, nine hundred twenty-five".