2555302321 has 24 divisors (see below), whose sum is σ = 3063213440. Its totient is φ = 2117063520.

The previous prime is 2555302319. The next prime is 2555302339. The reversal of 2555302321 is 1232035552.

It is not a de Polignac number, because 2555302321 - 2¹ = 2555302319 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 2555302321.

It is not an unprimeable number, because it can be changed into a prime (2555302301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113986 + ... + 134548.

Almost surely, 2^2555302321 is an apocalyptic number.

It is an amenable number.

2555302321 is a deficient number, since it is larger than the sum of its proper divisors (507911119).

2555302321 is a wasteful number, since it uses less digits than its factorization.

2555302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20677 (or 20666 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 2555302321 is about 50549.9982294757. The cubic root of 2555302321 is about 1367.1434826891.

Adding to 2555302321 its reverse (1232035552), we get a palindrome (3787337873).

The spelling of 2555302321 in words is "two billion, five hundred fifty-five million, three hundred two thousand, three hundred twenty-one".