550322130400 has 144 divisors (see below), whose sum is σ = 1535764454784. Its totient is φ = 188636935680.

The previous prime is 550322130389. The next prime is 550322130469. The reversal of 550322130400 is 4031223055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30695839 + ... + 30713761.

It is an arithmetic number, because the mean of its divisors is an integer number (10665030936).

Almost surely, 2^550322130400 is an apocalyptic number.

550322130400 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 550322130400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (767882227392).

550322130400 is an abundant number, since it is smaller than the sum of its proper divisors (985442324384).

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

550322130400 is a wasteful number, since it uses less digits than its factorization.

550322130400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23433 (or 23420 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 550322130400 its reverse (4031223055), we get a palindrome (554353353455).

The spelling of 550322130400 in words is "five hundred fifty billion, three hundred twenty-two million, one hundred thirty thousand, four hundred".