550520 has 16 divisors (see below), whose sum is σ = 1238760. Its totient is φ = 220192.

The previous prime is 550519. The next prime is 550531. The reversal of 550520 is 25055.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6842 + ... + 6921.

2⁵⁵⁰⁵²⁰ is an apocalyptic number.

It is an amenable number.

550520 is an abundant number, since it is smaller than the sum of its proper divisors (688240).

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

550520 is a wasteful number, since it uses less digits than its factorization.

550520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13774 (or 13770 counting only the distinct ones).

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

The square root of 550520 is about 741.9703498119. The cubic root of 550520 is about 81.9579399608.

Adding to 550520 its reverse (25055), we get a palindrome (575575).

The spelling of 550520 in words is "five hundred fifty thousand, five hundred twenty".