205051 has 8 divisors (see below), whose sum is σ = 255744. Its totient is φ = 159720.

The previous prime is 205043. The next prime is 205063. The reversal of 205051 is 150502.

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

It is not a de Polignac number, because 205051 - 2³ = 205043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205031) 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, 1255 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (31968).

2²⁰⁵⁰⁵¹ is an apocalyptic number.

205051 is a deficient number, since it is larger than the sum of its proper divisors (50693).

205051 is a wasteful number, since it uses less digits than its factorization.

205051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 205051 is about 452.8255734828. The cubic root of 205051 is about 58.9685746657.

Adding to 205051 its reverse (150502), we get a palindrome (355553).

The spelling of 205051 in words is "two hundred five thousand, fifty-one".