205049835 has 36 divisors (see below), whose sum is σ = 377580528. Its totient is φ = 102920448.

The previous prime is 205049833. The next prime is 205049851. The reversal of 205049835 is 538940502.

It is not a de Polignac number, because 205049835 - 2¹ = 205049833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205049835.

It is not an unprimeable number, because it can be changed into a prime (205049833) 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 35 ways as a sum of consecutive naturals, for example, 5122 + ... + 20888.

It is an arithmetic number, because the mean of its divisors is an integer number (10488348).

Almost surely, 2^205049835 is an apocalyptic number.

205049835 is a deficient number, since it is larger than the sum of its proper divisors (172530693).

205049835 is a wasteful number, since it uses less digits than its factorization.

205049835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15812 (or 15792 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 205049835 is about 14319.5612712122. The cubic root of 205049835 is about 589.6846298862.

The spelling of 205049835 in words is "two hundred five million, forty-nine thousand, eight hundred thirty-five".