550436 has 24 divisors (see below), whose sum is σ = 1042944. Its totient is φ = 253440.

The previous prime is 550427. The next prime is 550439. The reversal of 550436 is 634055.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550436.

It is not an unprimeable number, because it can be changed into a prime (550439) 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 7 ways as a sum of consecutive naturals, for example, 2756 + ... + 2948.

It is an arithmetic number, because the mean of its divisors is an integer number (43456).

2⁵⁵⁰⁴³⁶ is an apocalyptic number.

It is an amenable number.

550436 is a deficient number, since it is larger than the sum of its proper divisors (492508).

550436 is a wasteful number, since it uses less digits than its factorization.

550436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 249 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 550436 is about 741.9137416169. The cubic root of 550436 is about 81.9537712856.

550436 divided by its sum of digits (23) gives a palindrome (23932).

The spelling of 550436 in words is "five hundred fifty thousand, four hundred thirty-six".