65259697 has 2 divisors, whose sum is σ = 65259698. Its totient is φ = 65259696.

The previous prime is 65259679. The next prime is 65259739. The reversal of 65259697 is 79695256.

Together with previous prime (65259679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37896336 + 27363361 = 6156^2 + 5231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65259697 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65259697.

It is not a weakly prime, because it can be changed into another prime (65259637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32629848 + 32629849.

It is an arithmetic number, because the mean of its divisors is an integer number (32629849).

Almost surely, 2^65259697 is an apocalyptic number.

It is an amenable number.

65259697 is a deficient number, since it is larger than the sum of its proper divisors (1).

65259697 is an equidigital number, since it uses as much as digits as its factorization.

65259697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 49.

The square root of 65259697 is about 8078.3474176344. The cubic root of 65259697 is about 402.6073363158.

It can be divided in two parts, 65259 and 697, that added together give a palindrome (65956).

The spelling of 65259697 in words is "sixty-five million, two hundred fifty-nine thousand, six hundred ninety-seven".