54441209 has 2 divisors, whose sum is σ = 54441210. Its totient is φ = 54441208.

The previous prime is 54441203. The next prime is 54441227. The reversal of 54441209 is 90214445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33965584 + 20475625 = 5828^2 + 4525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54441209 is a prime.

It is not a weakly prime, because it can be changed into another prime (54441203) 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 as a sum of consecutive naturals, namely, 27220604 + 27220605.

It is an arithmetic number, because the mean of its divisors is an integer number (27220605).

Almost surely, 2^54441209 is an apocalyptic number.

It is an amenable number.

54441209 is a deficient number, since it is larger than the sum of its proper divisors (1).

54441209 is an equidigital number, since it uses as much as digits as its factorization.

54441209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 54441209 is about 7378.4286267470. The cubic root of 54441209 is about 379.0029471393.

The spelling of 54441209 in words is "fifty-four million, four hundred forty-one thousand, two hundred nine".