550332520000 has 140 divisors (see below), whose sum is σ = 1369599884620. Its totient is φ = 219333888000.

The previous prime is 550332519977. The next prime is 550332520061. The reversal of 550332520000 is 25233055.

It can be written as a sum of positive squares in 10 ways, for example, as 549069144064 + 1263375936 = 740992^2 + 35544^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11055166 + ... + 11104834.

Almost surely, 2^550332520000 is an apocalyptic number.

550332520000 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 550332520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684799942310).

550332520000 is an abundant number, since it is smaller than the sum of its proper divisors (819267364620).

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

550332520000 is an equidigital number, since it uses as much as digits as its factorization.

550332520000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49978 (or 49953 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

Adding to 550332520000 its reverse (25233055), we get a palindrome (550357753055).

The spelling of 550332520000 in words is "five hundred fifty billion, three hundred thirty-two million, five hundred twenty thousand".