65265637 has 2 divisors, whose sum is σ = 65265638. Its totient is φ = 65265636.

The previous prime is 65265619. The next prime is 65265647. The reversal of 65265637 is 73656256.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50893956 + 14371681 = 7134^2 + 3791^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65265637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65265637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65265647) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32632818 + 32632819.

It is an arithmetic number, because the mean of its divisors is an integer number (32632819).

Almost surely, 2^65265637 is an apocalyptic number.

It is an amenable number.

65265637 is a deficient number, since it is larger than the sum of its proper divisors (1).

65265637 is an equidigital number, since it uses as much as digits as its factorization.

65265637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 40.

The square root of 65265637 is about 8078.7150587207. The cubic root of 65265637 is about 402.6195511801.

The spelling of 65265637 in words is "sixty-five million, two hundred sixty-five thousand, six hundred thirty-seven".