54540217 has 2 divisors, whose sum is σ = 54540218. Its totient is φ = 54540216.

The previous prime is 54540197. The next prime is 54540223. The reversal of 54540217 is 71204545.

54540217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47485881 + 7054336 = 6891^2 + 2656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54540217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54520217) 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, 27270108 + 27270109.

It is an arithmetic number, because the mean of its divisors is an integer number (27270109).

Almost surely, 2^54540217 is an apocalyptic number.

It is an amenable number.

54540217 is a deficient number, since it is larger than the sum of its proper divisors (1).

54540217 is an equidigital number, since it uses as much as digits as its factorization.

54540217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 54540217 is about 7385.1348667441. The cubic root of 54540217 is about 379.2325624125.

The spelling of 54540217 in words is "fifty-four million, five hundred forty thousand, two hundred seventeen".