205355 has 8 divisors (see below), whose sum is σ = 250512. Its totient is φ = 161568.

The previous prime is 205339. The next prime is 205357. The reversal of 205355 is 553502.

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 205355 - 2⁴ = 205339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205357) 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, 29 + ... + 641.

It is an arithmetic number, because the mean of its divisors is an integer number (31314).

2²⁰⁵³⁵⁵ is an apocalyptic number.

205355 is a deficient number, since it is larger than the sum of its proper divisors (45157).

205355 is an equidigital number, since it uses as much as digits as its factorization.

205355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 205355 is about 453.1611192501. The cubic root of 205355 is about 58.9977017203.

Adding to 205355 its reverse (553502), we get a palindrome (758857).

The spelling of 205355 in words is "two hundred five thousand, three hundred fifty-five".