195555329 has 2 divisors, whose sum is σ = 195555330. Its totient is φ = 195555328.

The previous prime is 195555317. The next prime is 195555341. The reversal of 195555329 is 923555591.

It is a balanced prime because it is at equal distance from previous prime (195555317) and next prime (195555341).

It can be written as a sum of positive squares in only one way, i.e., 101465329 + 94090000 = 10073^2 + 9700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195555329 is a prime.

It is a Sophie Germain prime.

It is a Chen 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 195555329.

It is not a weakly prime, because it can be changed into another prime (195555929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97777664 + 97777665.

It is an arithmetic number, because the mean of its divisors is an integer number (97777665).

Almost surely, 2^195555329 is an apocalyptic number.

It is an amenable number.

195555329 is a deficient number, since it is larger than the sum of its proper divisors (1).

195555329 is an equidigital number, since it uses as much as digits as its factorization.

195555329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 303750, while the sum is 44.

The square root of 195555329 is about 13984.1098751404. The cubic root of 195555329 is about 580.4389552608.

The spelling of 195555329 in words is "one hundred ninety-five million, five hundred fifty-five thousand, three hundred twenty-nine".