550450132120 has 128 divisors (see below), whose sum is σ = 1491325655040. Its totient is φ = 178767452160.

The previous prime is 550450132103. The next prime is 550450132123. The reversal of 550450132120 is 21231054055.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550450132123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248400 + ... + 1078240.

It is an arithmetic number, because the mean of its divisors is an integer number (11650981680).

Almost surely, 2^550450132120 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 550450132120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (745662827520).

550450132120 is an abundant number, since it is smaller than the sum of its proper divisors (940875522920).

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

550450132120 is a wasteful number, since it uses less digits than its factorization.

550450132120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829985 (or 829981 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 550450132120 its reverse (21231054055), we get a palindrome (571681186175).

The spelling of 550450132120 in words is "five hundred fifty billion, four hundred fifty million, one hundred thirty-two thousand, one hundred twenty".