550165 has 16 divisors (see below), whose sum is σ = 823680. Its totient is φ = 342720.

The previous prime is 550163. The next prime is 550169. The reversal of 550165 is 561055.

It is not a de Polignac number, because 550165 - 2¹ = 550163 is a prime.

550165 is a modest number, since divided by 165 gives 55 as remainder.

550165 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (51480).

2⁵⁵⁰¹⁶⁵ is an apocalyptic number.

550165 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550165 is a deficient number, since it is larger than the sum of its proper divisors (273515).

550165 is a wasteful number, since it uses less digits than its factorization.

550165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 550165 is about 741.7310833449. The cubic root of 550165 is about 81.9403194536.

The spelling of 550165 in words is "five hundred fifty thousand, one hundred sixty-five".