205054059 has 16 divisors (see below), whose sum is σ = 316421120. Its totient is φ = 115689600.

The previous prime is 205054049. The next prime is 205054081. The reversal of 205054059 is 950450502.

It is a happy number.

It is not a de Polignac number, because 205054059 - 2⁴ = 205054043 is a prime.

It is a super-3 number, since 3×205054059³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205054049) 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 15 ways as a sum of consecutive naturals, for example, 60142 + ... + 63459.

It is an arithmetic number, because the mean of its divisors is an integer number (19776320).

Almost surely, 2^205054059 is an apocalyptic number.

205054059 is a deficient number, since it is larger than the sum of its proper divisors (111367061).

205054059 is a wasteful number, since it uses less digits than its factorization.

205054059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123690.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 205054059 is about 14319.7087610049. The cubic root of 205054059 is about 589.6886790007.

The spelling of 205054059 in words is "two hundred five million, fifty-four thousand, fifty-nine".