550512 has 30 divisors (see below), whose sum is σ = 1541072. Its totient is φ = 183456.

The previous prime is 550489. The next prime is 550513. The reversal of 550512 is 215055.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550513) by changing a digit.

550512 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1768 + ... + 2055.

2⁵⁵⁰⁵¹² is an apocalyptic number.

It is an amenable number.

550512 is an abundant number, since it is smaller than the sum of its proper divisors (990560).

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

550512 is a wasteful number, since it uses less digits than its factorization.

550512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837 (or 3828 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 550512 is about 741.9649587413. The cubic root of 550512 is about 81.9575429624.

Adding to 550512 its reverse (215055), we get a palindrome (765567).

The spelling of 550512 in words is "five hundred fifty thousand, five hundred twelve".