550485 has 24 divisors (see below), whose sum is σ = 1028664. Its totient is φ = 270720.

The previous prime is 550471. The next prime is 550489. The reversal of 550485 is 584055.

It can be written as a sum of positive squares in 4 ways, for example, as 19044 + 531441 = 138^2 + 729^2 .

It is not a de Polignac number, because 550485 - 2⁴ = 550469 is a prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 16.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550489) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (42861).

2⁵⁵⁰⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

550485 is a deficient number, since it is larger than the sum of its proper divisors (478179).

550485 is a wasteful number, since it uses less digits than its factorization.

550485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 550485 is about 741.9467635889. The cubic root of 550485 is about 81.9562030643.

It can be divided in two parts, 550 and 485, that added together give a triangular number (1035 = T₄₅).

The spelling of 550485 in words is "five hundred fifty thousand, four hundred eighty-five".