65601013 has 2 divisors, whose sum is σ = 65601014. Its totient is φ = 65601012.

The previous prime is 65600981. The next prime is 65601031. The reversal of 65601013 is 31010656.

Together with next prime (65601031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65577604 + 23409 = 8098^2 + 153^2 .

It is a cyclic number.

It is not a de Polignac number, because 65601013 - 2⁵ = 65600981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65601043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32800506 + 32800507.

It is an arithmetic number, because the mean of its divisors is an integer number (32800507).

Almost surely, 2^65601013 is an apocalyptic number.

It is an amenable number.

65601013 is a deficient number, since it is larger than the sum of its proper divisors (1).

65601013 is an equidigital number, since it uses as much as digits as its factorization.

65601013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 65601013 is about 8099.4452279153. The cubic root of 65601013 is about 403.3080109929.

Adding to 65601013 its reverse (31010656), we get a palindrome (96611669).

The spelling of 65601013 in words is "sixty-five million, six hundred one thousand, thirteen".