195555061 has 8 divisors (see below), whose sum is σ = 210747320. Its totient is φ = 180384192.

The previous prime is 195555023. The next prime is 195555067. The reversal of 195555061 is 160555591.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7344100 + 188210961 = 2710^2 + 13719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 195555061 - 2⁹ = 195554549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 195555061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195555067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17191 + ... + 26203.

It is an arithmetic number, because the mean of its divisors is an integer number (26343415).

Almost surely, 2^195555061 is an apocalyptic number.

It is an amenable number.

195555061 is a deficient number, since it is larger than the sum of its proper divisors (15192259).

195555061 is a wasteful number, since it uses less digits than its factorization.

195555061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695.

The product of its (nonzero) digits is 33750, while the sum is 37.

The square root of 195555061 is about 13984.1002928326. The cubic root of 195555061 is about 580.4386901053.

The spelling of 195555061 in words is "one hundred ninety-five million, five hundred fifty-five thousand, sixty-one".