205606055 has 8 divisors (see below), whose sum is σ = 246812832. Its totient is φ = 164427808.

The previous prime is 205606013. The next prime is 205606057. The reversal of 205606055 is 550606502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205606055 - 2⁶ = 205605991 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 (205606057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14942 + ... + 25188.

It is an arithmetic number, because the mean of its divisors is an integer number (30851604).

Almost surely, 2^205606055 is an apocalyptic number.

205606055 is a deficient number, since it is larger than the sum of its proper divisors (41206777).

205606055 is a wasteful number, since it uses less digits than its factorization.

205606055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14265.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 205606055 is about 14338.9698026044. The cubic root of 205606055 is about 590.2173430800.

The spelling of 205606055 in words is "two hundred five million, six hundred six thousand, fifty-five".