65548289 has 2 divisors, whose sum is σ = 65548290. Its totient is φ = 65548288.

The previous prime is 65548253. The next prime is 65548319. The reversal of 65548289 is 98284556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39589264 + 25959025 = 6292^2 + 5095^2 .

It is a cyclic number.

It is not a de Polignac number, because 65548289 - 2²⁰ = 64499713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65548789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32774144 + 32774145.

It is an arithmetic number, because the mean of its divisors is an integer number (32774145).

Almost surely, 2^65548289 is an apocalyptic number.

It is an amenable number.

65548289 is a deficient number, since it is larger than the sum of its proper divisors (1).

65548289 is an equidigital number, since it uses as much as digits as its factorization.

65548289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691200, while the sum is 47.

The square root of 65548289 is about 8096.1897828546. The cubic root of 65548289 is about 403.1999348630.

The spelling of 65548289 in words is "sixty-five million, five hundred forty-eight thousand, two hundred eighty-nine".