205266 has 8 divisors (see below), whose sum is σ = 410544. Its totient is φ = 68420.

The previous prime is 205253. The next prime is 205267. The reversal of 205266 is 662502.

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

205266 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (205267) by changing a digit.

205266 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17100 + ... + 17111.

It is an arithmetic number, because the mean of its divisors is an integer number (51318).

2²⁰⁵²⁶⁶ is an apocalyptic number.

205266 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205266 is a wasteful number, since it uses less digits than its factorization.

205266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34216.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 205266 is about 453.0629095391. The cubic root of 205266 is about 58.9891773695.

Adding to 205266 its reverse (662502), we get a palindrome (867768).

The spelling of 205266 in words is "two hundred five thousand, two hundred sixty-six".