550305305320 has 128 divisors (see below), whose sum is σ = 1291841798400. Its totient is φ = 210785089536.

The previous prime is 550305305311. The next prime is 550305305369. The reversal of 550305305320 is 23503503055.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52610251 + ... + 52620709.

It is an arithmetic number, because the mean of its divisors is an integer number (10092514050).

Almost surely, 2^550305305320 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 550305305320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645920899200).

550305305320 is an abundant number, since it is smaller than the sum of its proper divisors (741536493080).

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

550305305320 is a wasteful number, since it uses less digits than its factorization.

550305305320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11067 (or 11063 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 31.

Adding to 550305305320 its reverse (23503503055), we get a palindrome (573808808375).

It can be divided in two parts, 550305 and 305320, that added together give a square (855625 = 925²).

The spelling of 550305305320 in words is "five hundred fifty billion, three hundred five million, three hundred five thousand, three hundred twenty".