205250 has 16 divisors (see below), whose sum is σ = 384696. Its totient is φ = 82000.

The previous prime is 205237. The next prime is 205253. The reversal of 205250 is 52502.

It can be written as a sum of positive squares in 4 ways, for example, as 39601 + 165649 = 199^2 + 407^2 .

It is not an unprimeable number, because it can be changed into a prime (205253) by changing a digit.

205250 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161 + ... + 660.

2²⁰⁵²⁵⁰ is an apocalyptic number.

205250 is a deficient number, since it is larger than the sum of its proper divisors (179446).

205250 is an equidigital number, since it uses as much as digits as its factorization.

205250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 205250 is about 453.0452516030. The cubic root of 205250 is about 58.9876446406.

Adding to 205250 its reverse (52502), we get a palindrome (257752).

The spelling of 205250 in words is "two hundred five thousand, two hundred fifty".