550303105440 has 192 divisors, whose sum is σ = 1912290871680. Its totient is φ = 131907747840.

The previous prime is 550303105369. The next prime is 550303105447. The reversal of 550303105440 is 44501303055.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 550303105398 and 550303105407.

It is not an unprimeable number, because it can be changed into a prime (550303105447) by changing a digit.

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, 115609 + ... + 1055448.

It is an arithmetic number, because the mean of its divisors is an integer number (9959848290).

Almost surely, 2^550303105440 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 550303105440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956145435840).

550303105440 is an abundant number, since it is smaller than the sum of its proper divisors (1361987766240).

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

550303105440 is a wasteful number, since it uses less digits than its factorization.

550303105440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171175 (or 1171167 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 550303105440 its reverse (44501303055), we get a palindrome (594804408495).

The spelling of 550303105440 in words is "five hundred fifty billion, three hundred three million, one hundred five thousand, four hundred forty".