550321065 has 48 divisors (see below), whose sum is σ = 1116775296. Its totient is φ = 245433600.

The previous prime is 550321063. The next prime is 550321151. The reversal of 550321065 is 560123055.

550321065 is a `hidden beast` number, since 550 + 3 + 2 + 106 + 5 = 666.

550321065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 550321065 - 2¹ = 550321063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550321063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8391 + ... + 34220.

It is an arithmetic number, because the mean of its divisors is an integer number (23266152).

Almost surely, 2^550321065 is an apocalyptic number.

It is an amenable number.

550321065 is an abundant number, since it is smaller than the sum of its proper divisors (566454231).

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

550321065 is a wasteful number, since it uses less digits than its factorization.

550321065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42670 (or 42667 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 550321065 is about 23458.9229292395. The cubic root of 550321065 is about 819.4806670938.

The spelling of 550321065 in words is "five hundred fifty million, three hundred twenty-one thousand, sixty-five".