550222020400 has 180 divisors, whose sum is σ = 1515619692792. Its totient is φ = 191207976960.

The previous prime is 550222020373. The next prime is 550222020401. The reversal of 550222020400 is 4020222055.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (550222020401) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 909807 + ... + 1388593.

Almost surely, 2^550222020400 is an apocalyptic number.

550222020400 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 550222020400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (757809846396).

550222020400 is an abundant number, since it is smaller than the sum of its proper divisors (965397672392).

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

550222020400 is a wasteful number, since it uses less digits than its factorization.

550222020400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478848 (or 478824 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 550222020400 its reverse (4020222055), we get a palindrome (554242242455).

The spelling of 550222020400 in words is "five hundred fifty billion, two hundred twenty-two million, twenty thousand, four hundred".