2550442321 has 16 divisors (see below), whose sum is σ = 2948632576. Its totient is φ = 2160841536.

The previous prime is 2550442319. The next prime is 2550442337. The reversal of 2550442321 is 1232440552.

It is not a de Polignac number, because 2550442321 - 2¹ = 2550442319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2550442321.

It is not an unprimeable number, because it can be changed into a prime (2550442361) 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 15 ways as a sum of consecutive naturals, for example, 241075 + ... + 251431.

It is an arithmetic number, because the mean of its divisors is an integer number (184289536).

Almost surely, 2^2550442321 is an apocalyptic number.

It is an amenable number.

2550442321 is a deficient number, since it is larger than the sum of its proper divisors (398190255).

2550442321 is a wasteful number, since it uses less digits than its factorization.

2550442321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10768.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2550442321 is about 50501.9041324186. The cubic root of 2550442321 is about 1366.2761966457.

Adding to 2550442321 its reverse (1232440552), we get a palindrome (3782882873).

The spelling of 2550442321 in words is "two billion, five hundred fifty million, four hundred forty-two thousand, three hundred twenty-one".