2555503321 has 32 divisors (see below), whose sum is σ = 3098880000. Its totient is φ = 2104240320.

The previous prime is 2555503319. The next prime is 2555503339. The reversal of 2555503321 is 1233055552.

It is not a de Polignac number, because 2555503321 - 2¹ = 2555503319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555504321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1583511 + ... + 1585123.

It is an arithmetic number, because the mean of its divisors is an integer number (96840000).

Almost surely, 2^2555503321 is an apocalyptic number.

It is an amenable number.

2555503321 is a deficient number, since it is larger than the sum of its proper divisors (543376679).

2555503321 is a wasteful number, since it uses less digits than its factorization.

2555503321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814 (or 1800 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 31.

The square root of 2555503321 is about 50551.9863210141. The cubic root of 2555503321 is about 1367.1793282370.

Adding to 2555503321 its reverse (1233055552), we get a palindrome (3788558873).

The spelling of 2555503321 in words is "two billion, five hundred fifty-five million, five hundred three thousand, three hundred twenty-one".