2544551321 has 16 divisors (see below), whose sum is σ = 2874735360. Its totient is φ = 2235858240.

The previous prime is 2544551287. The next prime is 2544551323. The reversal of 2544551321 is 1231554452.

It is not a de Polignac number, because 2544551321 - 2⁶ = 2544551257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2544551323) 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 15 ways as a sum of consecutive naturals, for example, 20765 + ... + 74298.

It is an arithmetic number, because the mean of its divisors is an integer number (179670960).

Almost surely, 2^2544551321 is an apocalyptic number.

It is an amenable number.

2544551321 is a deficient number, since it is larger than the sum of its proper divisors (330184039).

2544551321 is a wasteful number, since it uses less digits than its factorization.

2544551321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95176.

The product of its digits is 24000, while the sum is 32.

The square root of 2544551321 is about 50443.5458805187. The cubic root of 2544551321 is about 1365.2234461812.

The spelling of 2544551321 in words is "two billion, five hundred forty-four million, five hundred fifty-one thousand, three hundred twenty-one".