550122545500 has 96 divisors (see below), whose sum is σ = 1312745144256. Its totient is φ = 199731200000.

The previous prime is 550122545491. The next prime is 550122545537. The reversal of 550122545500 is 5545221055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3447480 + ... + 3603520.

It is an arithmetic number, because the mean of its divisors is an integer number (13674428586).

Almost surely, 2^550122545500 is an apocalyptic number.

550122545500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550122545500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656372572128).

550122545500 is an abundant number, since it is smaller than the sum of its proper divisors (762622598756).

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

550122545500 is a wasteful number, since it uses less digits than its factorization.

550122545500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156712 (or 156700 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 34.

Adding to 550122545500 its reverse (5545221055), we get a palindrome (555667766555).

The spelling of 550122545500 in words is "five hundred fifty billion, one hundred twenty-two million, five hundred forty-five thousand, five hundred".