550164 has 36 divisors (see below), whose sum is σ = 1365504. Its totient is φ = 172368.

The previous prime is 550163. The next prime is 550169. The reversal of 550164 is 461055.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 550164.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4269 + ... + 4395.

2⁵⁵⁰¹⁶⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (682752).

550164 is an abundant number, since it is smaller than the sum of its proper divisors (815340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550164 is a wasteful number, since it uses less digits than its factorization.

550164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 550164 is about 741.7304092458. The cubic root of 550164 is about 81.9402698076.

It can be divided in two parts, 5501 and 64, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 550164 in words is "five hundred fifty thousand, one hundred sixty-four".