550499 has 4 divisors (see below), whose sum is σ = 553320. Its totient is φ = 547680.

The previous prime is 550489. The next prime is 550513. The reversal of 550499 is 994055.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994055 = 5 ⋅198811.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550499 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550499.

It is not an unprimeable number, because it can be changed into a prime (550439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094 + ... + 1515.

It is an arithmetic number, because the mean of its divisors is an integer number (138330).

2⁵⁵⁰⁴⁹⁹ is an apocalyptic number.

550499 is a deficient number, since it is larger than the sum of its proper divisors (2821).

550499 is a wasteful number, since it uses less digits than its factorization.

550499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 550499 is about 741.9561981681. The cubic root of 550499 is about 81.9568978317.

Subtracting 550499 from its reverse (994055), we obtain a square (443556 = 666²).

The spelling of 550499 in words is "five hundred fifty thousand, four hundred ninety-nine".