550458 has 24 divisors (see below), whose sum is σ = 1217268. Its totient is φ = 179712.

The previous prime is 550457. The next prime is 550469. The reversal of 550458 is 854055.

It can be written as a sum of positive squares in 2 ways, for example, as 439569 + 110889 = 663^2 + 333^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 550458.

It is not an unprimeable number, because it can be changed into a prime (550457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 666 + ... + 1242.

2⁵⁵⁰⁴⁵⁸ is an apocalyptic number.

550458 is an abundant number, since it is smaller than the sum of its proper divisors (666810).

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

550458 is a wasteful number, since it uses less digits than its factorization.

550458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 550458 is about 741.9285679902. The cubic root of 550458 is about 81.9548631225.

The spelling of 550458 in words is "five hundred fifty thousand, four hundred fifty-eight".