206053559 has 16 divisors (see below), whose sum is σ = 219469824. Its totient is φ = 193159200.

The previous prime is 206053541. The next prime is 206053571. The reversal of 206053559 is 955350602.

It is a cyclic number.

It is not a de Polignac number, because 206053559 - 2²⁰ = 205004983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206053459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135614 + ... + 137124.

It is an arithmetic number, because the mean of its divisors is an integer number (13716864).

Almost surely, 2^206053559 is an apocalyptic number.

206053559 is a deficient number, since it is larger than the sum of its proper divisors (13416265).

206053559 is a wasteful number, since it uses less digits than its factorization.

206053559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 206053559 is about 14354.5657893229. The cubic root of 206053559 is about 590.6452377900.

The spelling of 206053559 in words is "two hundred six million, fifty-three thousand, five hundred fifty-nine".