2550321 has 6 divisors (see below), whose sum is σ = 3683810. Its totient is φ = 1700208.

The previous prime is 2550319. The next prime is 2550329. The reversal of 2550321 is 1230552.

It is a happy number.

2550321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2480625 + 69696 = 1575^2 + 264^2 .

It is not a de Polignac number, because 2550321 - 2¹ = 2550319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2550294 and 2550303.

It is not an unprimeable number, because it can be changed into a prime (2550329) 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 5 ways as a sum of consecutive naturals, for example, 141676 + ... + 141693.

2^2550321 is an apocalyptic number.

It is an amenable number.

2550321 is a deficient number, since it is larger than the sum of its proper divisors (1133489).

2550321 is a wasteful number, since it uses less digits than its factorization.

2550321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283375 (or 283372 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2550321 is about 1596.9724481030. The cubic root of 2550321 is about 136.6254532348.

Adding to 2550321 its reverse (1230552), we get a palindrome (3780873).

The spelling of 2550321 in words is "two million, five hundred fifty thousand, three hundred twenty-one".