550329780 has 576 divisors, whose sum is σ = 2252275200. Its totient is φ = 99348480.

The previous prime is 550329761. The next prime is 550329811. The reversal of 550329780 is 87923055.

550329780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 32372332 + ... + 32372348.

It is an arithmetic number, because the mean of its divisors is an integer number (3910200).

Almost surely, 2^550329780 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 550329780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126137600).

550329780 is an abundant number, since it is smaller than the sum of its proper divisors (1701945420).

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

550329780 is a wasteful number, since it uses less digits than its factorization.

550329780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 550329780 is about 23459.1086787201. The cubic root of 550329780 is about 819.4849928937.

The spelling of 550329780 in words is "five hundred fifty million, three hundred twenty-nine thousand, seven hundred eighty".