550442 has 8 divisors (see below), whose sum is σ = 831396. Its totient is φ = 273312.

The previous prime is 550441. The next prime is 550447. The reversal of 550442 is 244055.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 461041 + 89401 = 679^2 + 299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (550441) 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, 563 + ... + 1190.

2⁵⁵⁰⁴⁴² is an apocalyptic number.

550442 is a deficient number, since it is larger than the sum of its proper divisors (280954).

550442 is a wasteful number, since it uses less digits than its factorization.

550442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 550442 is about 741.9177852026. The cubic root of 550442 is about 81.9540690622.

Adding to 550442 its reverse (244055), we get a palindrome (794497).

The spelling of 550442 in words is "five hundred fifty thousand, four hundred forty-two".