54017321 has 2 divisors, whose sum is σ = 54017322. Its totient is φ = 54017320.

The previous prime is 54017311. The next prime is 54017339. The reversal of 54017321 is 12371045.

54017321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45751696 + 8265625 = 6764^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 54017321 - 2¹⁴ = 54000937 is a prime.

It is a Chen prime.

It is equal to p_3227162 and since 54017321 and 3227162 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (54017311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27008660 + 27008661.

It is an arithmetic number, because the mean of its divisors is an integer number (27008661).

Almost surely, 2^54017321 is an apocalyptic number.

It is an amenable number.

54017321 is a deficient number, since it is larger than the sum of its proper divisors (1).

54017321 is an equidigital number, since it uses as much as digits as its factorization.

54017321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 54017321 is about 7349.6476786306. The cubic root of 54017321 is about 378.0167237825.

Adding to 54017321 its reverse (12371045), we get a palindrome (66388366).

The spelling of 54017321 in words is "fifty-four million, seventeen thousand, three hundred twenty-one".