65662241 has 2 divisors, whose sum is σ = 65662242. Its totient is φ = 65662240.

The previous prime is 65662237. The next prime is 65662249. The reversal of 65662241 is 14226656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44502241 + 21160000 = 6671^2 + 4600^2 .

It is a cyclic number.

It is not a de Polignac number, because 65662241 - 2² = 65662237 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65662198 and 65662207.

It is not a weakly prime, because it can be changed into another prime (65662249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32831120 + 32831121.

It is an arithmetic number, because the mean of its divisors is an integer number (32831121).

Almost surely, 2^65662241 is an apocalyptic number.

It is an amenable number.

65662241 is a deficient number, since it is larger than the sum of its proper divisors (1).

65662241 is an equidigital number, since it uses as much as digits as its factorization.

65662241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 65662241 is about 8103.2241114263. The cubic root of 65662241 is about 403.4334463746.

Adding to 65662241 its reverse (14226656), we get a palindrome (79888897).

The spelling of 65662241 in words is "sixty-five million, six hundred sixty-two thousand, two hundred forty-one".