195152158525 has 6 divisors (see below), whose sum is σ = 241988676602. Its totient is φ = 156121726800.

The previous prime is 195152158471. The next prime is 195152158549. The reversal of 195152158525 is 525851251591.

It can be written as a sum of positive squares in 3 ways, for example, as 17657625924 + 177494532601 = 132882^2 + 421301^2 .

It is not a de Polignac number, because 195152158525 - 2²⁹ = 194615287613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3903043146 + ... + 3903043195.

Almost surely, 2^195152158525 is an apocalyptic number.

It is an amenable number.

195152158525 is a deficient number, since it is larger than the sum of its proper divisors (46836518077).

195152158525 is an equidigital number, since it uses as much as digits as its factorization.

195152158525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7806086351 (or 7806086346 counting only the distinct ones).

The product of its digits is 900000, while the sum is 49.

The spelling of 195152158525 in words is "one hundred ninety-five billion, one hundred fifty-two million, one hundred fifty-eight thousand, five hundred twenty-five".