550018332 has 54 divisors (see below), whose sum is σ = 1423581432. Its totient is φ = 179054064.

The previous prime is 550018319. The next prime is 550018333. The reversal of 550018332 is 233810055.

550018332 is a `hidden beast` number, since 550 + 0 + 1 + 83 + 32 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 550018296 and 550018305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550018333) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 62433 + ... + 70695.

Almost surely, 2^550018332 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 550018332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711790716).

550018332 is an abundant number, since it is smaller than the sum of its proper divisors (873563100).

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

550018332 is a wasteful number, since it uses less digits than its factorization.

550018332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359 (or 8311 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 550018332 is about 23452.4696354137. The cubic root of 550018332 is about 819.3303734071.

Adding to 550018332 its reverse (233810055), we get a palindrome (783828387).

It can be divided in two parts, 5500 and 18332, that added together give a palindrome (23832).

The spelling of 550018332 in words is "five hundred fifty million, eighteen thousand, three hundred thirty-two".