195861055 has 16 divisors (see below), whose sum is σ = 253733760. Its totient is φ = 144281088.

The previous prime is 195861053. The next prime is 195861067. The reversal of 195861055 is 550168591.

It is a cyclic number.

It is not a de Polignac number, because 195861055 - 2¹ = 195861053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 195860999 and 195861017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195861053) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 24666 + ... + 31624.

It is an arithmetic number, because the mean of its divisors is an integer number (15858360).

Almost surely, 2^195861055 is an apocalyptic number.

195861055 is a deficient number, since it is larger than the sum of its proper divisors (57872705).

195861055 is a wasteful number, since it uses less digits than its factorization.

195861055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7410.

The product of its (nonzero) digits is 54000, while the sum is 40.

The square root of 195861055 is about 13995.0367988084. The cubic root of 195861055 is about 580.7412787088.

The spelling of 195861055 in words is "one hundred ninety-five million, eight hundred sixty-one thousand, fifty-five".