195085951525 has 6 divisors (see below), whose sum is σ = 241906579922. Its totient is φ = 156068761200.

The previous prime is 195085951517. The next prime is 195085951609. The reversal of 195085951525 is 525159580591.

It can be written as a sum of positive squares in 3 ways, for example, as 6061868164 + 189024083361 = 77858^2 + 434769^2 .

It is not a de Polignac number, because 195085951525 - 2³ = 195085951517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3901719006 + ... + 3901719055.

Almost surely, 2^195085951525 is an apocalyptic number.

It is an amenable number.

195085951525 is a deficient number, since it is larger than the sum of its proper divisors (46820628397).

195085951525 is an equidigital number, since it uses as much as digits as its factorization.

195085951525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7803438071 (or 7803438066 counting only the distinct ones).

The product of its (nonzero) digits is 4050000, while the sum is 55.

The spelling of 195085951525 in words is "one hundred ninety-five billion, eighty-five million, nine hundred fifty-one thousand, five hundred twenty-five".