65385532249 has 2 divisors, whose sum is σ = 65385532250. Its totient is φ = 65385532248.

The previous prime is 65385532187. The next prime is 65385532253. The reversal of 65385532249 is 94223558356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40579282249 + 24806250000 = 201443^2 + 157500^2 .

It is a cyclic number.

It is not a de Polignac number, because 65385532249 - 2⁹ = 65385531737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65385532196 and 65385532205.

It is not a weakly prime, because it can be changed into another prime (65385532349) 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, 32692766124 + 32692766125.

It is an arithmetic number, because the mean of its divisors is an integer number (32692766125).

Almost surely, 2^65385532249 is an apocalyptic number.

It is an amenable number.

65385532249 is a deficient number, since it is larger than the sum of its proper divisors (1).

65385532249 is an equidigital number, since it uses as much as digits as its factorization.

65385532249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776000, while the sum is 52.

The spelling of 65385532249 in words is "sixty-five billion, three hundred eighty-five million, five hundred thirty-two thousand, two hundred forty-nine".