205054 has 16 divisors (see below), whose sum is σ = 336528. Its totient is φ = 93312.

The previous prime is 205043. The next prime is 205063. The reversal of 205054 is 450502.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

205054 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 7 ways as a sum of consecutive naturals, for example, 1177 + ... + 1339.

It is an arithmetic number, because the mean of its divisors is an integer number (21033).

2²⁰⁵⁰⁵⁴ is an apocalyptic number.

205054 is a deficient number, since it is larger than the sum of its proper divisors (131474).

205054 is a wasteful number, since it uses less digits than its factorization.

205054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 205054 is about 452.8288860044. The cubic root of 205054 is about 58.9688622444.

Adding to 205054 its reverse (450502), we get a palindrome (655556).

The spelling of 205054 in words is "two hundred five thousand, fifty-four".