66050449 has 2 divisors, whose sum is σ = 66050450. Its totient is φ = 66050448.

The previous prime is 66050447. The next prime is 66050459. The reversal of 66050449 is 94405066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38937600 + 27112849 = 6240^2 + 5207^2 .

It is a cyclic number.

It is not a de Polignac number, because 66050449 - 2¹ = 66050447 is a prime.

Together with 66050447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (66050443) 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, 33025224 + 33025225.

It is an arithmetic number, because the mean of its divisors is an integer number (33025225).

Almost surely, 2^66050449 is an apocalyptic number.

It is an amenable number.

66050449 is a deficient number, since it is larger than the sum of its proper divisors (1).

66050449 is an equidigital number, since it uses as much as digits as its factorization.

66050449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 66050449 is about 8127.1427328428. The cubic root of 66050449 is about 404.2269437761.

The spelling of 66050449 in words is "sixty-six million, fifty thousand, four hundred forty-nine".