550443520 has 120 divisors (see below), whose sum is σ = 1451477412. Its totient is φ = 200048640.

The previous prime is 550443511. The next prime is 550443539. The reversal of 550443520 is 25344055.

It can be written as a sum of positive squares in 2 ways, for example, as 547934464 + 2509056 = 23408^2 + 1584^2 .

It is a super-3 number, since 3×550443520³ (a number of 27 digits) contains 333 as substring.

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, 308872 + ... + 310648.

Almost surely, 2^550443520 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 550443520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (725738706).

550443520 is an abundant number, since it is smaller than the sum of its proper divisors (901033892).

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

550443520 is a wasteful number, since it uses less digits than its factorization.

550443520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 550443520 is about 23461.5327717521. The cubic root of 550443520 is about 819.5414449859.

Adding to 550443520 its reverse (25344055), we get a palindrome (575787575).

It can be divided in two parts, 55044 and 3520, that added together give a square (58564 = 242²).

The spelling of 550443520 in words is "five hundred fifty million, four hundred forty-three thousand, five hundred twenty".