550205 has 8 divisors (see below), whose sum is σ = 699192. Its totient is φ = 414208.

The previous prime is 550189. The next prime is 550211. The reversal of 550205 is 502055.

It is a happy number.

550205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 502681 = 218^2 + 709^2 .

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 550205 - 2⁴ = 550189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3152 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (87399).

2⁵⁵⁰²⁰⁵ is an apocalyptic number.

It is an amenable number.

550205 is a deficient number, since it is larger than the sum of its proper divisors (148987).

550205 is a wasteful number, since it uses less digits than its factorization.

550205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495.

The product of its (nonzero) digits is 250, while the sum is 17.

The square root of 550205 is about 741.7580468050. The cubic root of 550205 is about 81.9423052417.

The spelling of 550205 in words is "five hundred fifty thousand, two hundred five".