195312550 has 24 divisors (see below), whose sum is σ = 379078416. Its totient is φ = 74727840.

The previous prime is 195312521. The next prime is 195312563. The reversal of 195312550 is 55213591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83769 + ... + 86068.

It is an arithmetic number, because the mean of its divisors is an integer number (15794934).

Almost surely, 2^195312550 is an apocalyptic number.

195312550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

195312550 is a deficient number, since it is larger than the sum of its proper divisors (183765866).

195312550 is a wasteful number, since it uses less digits than its factorization.

195312550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169872 (or 169867 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 195312550 is about 13975.4266482280. The cubic root of 195312550 is about 580.1986537119.

The spelling of 195312550 in words is "one hundred ninety-five million, three hundred twelve thousand, five hundred fifty".