550205404 has 48 divisors (see below), whose sum is σ = 1137850560. Its totient is φ = 227888640.

The previous prime is 550205353. The next prime is 550205413. The reversal of 550205404 is 404502055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122934 + ... + 127330.

It is an arithmetic number, because the mean of its divisors is an integer number (23705220).

Almost surely, 2^550205404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550205404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568925280).

550205404 is an abundant number, since it is smaller than the sum of its proper divisors (587645156).

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

550205404 is a wasteful number, since it uses less digits than its factorization.

550205404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558 (or 4556 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The square root of 550205404 is about 23456.4576183191. The cubic root of 550205404 is about 819.4232529767.

Adding to 550205404 its reverse (404502055), we get a palindrome (954707459).

The spelling of 550205404 in words is "five hundred fifty million, two hundred five thousand, four hundred four".