195050549 has 4 divisors (see below), whose sum is σ = 201776460. Its totient is φ = 188324640.

The previous prime is 195050533. The next prime is 195050551. The reversal of 195050549 is 945050591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39250225 + 155800324 = 6265^2 + 12482^2 .

It is a cyclic number.

It is not a de Polignac number, because 195050549 - 2⁴ = 195050533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195050509) 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 in 3 ways as a sum of consecutive naturals, for example, 3362912 + ... + 3362969.

It is an arithmetic number, because the mean of its divisors is an integer number (50444115).

Almost surely, 2^195050549 is an apocalyptic number.

It is an amenable number.

195050549 is a deficient number, since it is larger than the sum of its proper divisors (6725911).

195050549 is an equidigital number, since it uses as much as digits as its factorization.

195050549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6725910.

The product of its (nonzero) digits is 40500, while the sum is 38.

The square root of 195050549 is about 13966.0498710265. The cubic root of 195050549 is about 579.9391028017.

The spelling of 195050549 in words is "one hundred ninety-five million, fifty thousand, five hundred forty-nine".