550444320 has 72 divisors (see below), whose sum is σ = 1878396156. Its totient is φ = 146784768.

The previous prime is 550444313. The next prime is 550444361. The reversal of 550444320 is 23444055.

It can be written as a sum of positive squares in 2 ways, for example, as 548121744 + 2322576 = 23412^2 + 1524^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189687 + ... + 192566.

Almost surely, 2^550444320 is an apocalyptic number.

It is an amenable number.

550444320 is an abundant number, since it is smaller than the sum of its proper divisors (1327951836).

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

550444320 is a wasteful number, since it uses less digits than its factorization.

550444320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382274 (or 382263 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 550444320 is about 23461.5498209304. The cubic root of 550444320 is about 819.5418420190.

Adding to 550444320 its reverse (23444055), we get a palindrome (573888375).

The spelling of 550444320 in words is "five hundred fifty million, four hundred forty-four thousand, three hundred twenty".