54203321 has 2 divisors, whose sum is σ = 54203322. Its totient is φ = 54203320.

The previous prime is 54203297. The next prime is 54203339. The reversal of 54203321 is 12330245.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53071225 + 1132096 = 7285^2 + 1064^2 .

It is a cyclic number.

It is not a de Polignac number, because 54203321 - 2¹⁸ = 53941177 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 54203293 and 54203302.

It is not a weakly prime, because it can be changed into another prime (54203351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27101660 + 27101661.

It is an arithmetic number, because the mean of its divisors is an integer number (27101661).

Almost surely, 2^54203321 is an apocalyptic number.

It is an amenable number.

54203321 is a deficient number, since it is larger than the sum of its proper divisors (1).

54203321 is an equidigital number, since it uses as much as digits as its factorization.

54203321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 54203321 is about 7362.2904724006. The cubic root of 54203321 is about 378.4501067645.

Adding to 54203321 its reverse (12330245), we get a palindrome (66533566).

The spelling of 54203321 in words is "fifty-four million, two hundred three thousand, three hundred twenty-one".