550523 has 4 divisors (see below), whose sum is σ = 565440. Its totient is φ = 535608.

The previous prime is 550519. The next prime is 550531. The reversal of 550523 is 325055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 325055 = 5 ⋅65011.

It is a cyclic number.

It is not a de Polignac number, because 550523 - 2² = 550519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550495 and 550504.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7403 + ... + 7476.

It is an arithmetic number, because the mean of its divisors is an integer number (141360).

2⁵⁵⁰⁵²³ is an apocalyptic number.

550523 is a deficient number, since it is larger than the sum of its proper divisors (14917).

550523 is a wasteful number, since it uses less digits than its factorization.

550523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14916.

The product of its (nonzero) digits is 750, while the sum is 20.

The square root of 550523 is about 741.9723714533. The cubic root of 550523 is about 81.9580888342.

Adding to 550523 its reverse (325055), we get a palindrome (875578).

It can be divided in two parts, 55052 and 3, that added together give a palindrome (55055).

The spelling of 550523 in words is "five hundred fifty thousand, five hundred twenty-three".