2554320321 has 48 divisors (see below), whose sum is σ = 4259084544. Its totient is φ = 1445012352.

The previous prime is 2554320313. The next prime is 2554320331. The reversal of 2554320321 is 1230234552.

It is a happy number.

It is not a de Polignac number, because 2554320321 - 2³ = 2554320313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2554320311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3437476 + ... + 3438218.

It is an arithmetic number, because the mean of its divisors is an integer number (88730928).

Almost surely, 2^2554320321 is an apocalyptic number.

2554320321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2554320321 is a deficient number, since it is larger than the sum of its proper divisors (1704764223).

2554320321 is a wasteful number, since it uses less digits than its factorization.

2554320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2554320321 is about 50540.2841404755. The cubic root of 2554320321 is about 1366.9683296483.

Adding to 2554320321 its reverse (1230234552), we get a palindrome (3784554873).

The spelling of 2554320321 in words is "two billion, five hundred fifty-four million, three hundred twenty thousand, three hundred twenty-one".