65585173 has 2 divisors, whose sum is σ = 65585174. Its totient is φ = 65585172.

The previous prime is 65585137. The next prime is 65585203. The reversal of 65585173 is 37158556.

Together with previous prime (65585137) 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 + 7569 = 8098^2 + 87^2 .

It is a cyclic number.

It is not a de Polignac number, because 65585173 - 2²¹ = 63488021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65585573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32792586 + 32792587.

It is an arithmetic number, because the mean of its divisors is an integer number (32792587).

Almost surely, 2^65585173 is an apocalyptic number.

It is an amenable number.

65585173 is a deficient number, since it is larger than the sum of its proper divisors (1).

65585173 is an equidigital number, since it uses as much as digits as its factorization.

65585173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 40.

The square root of 65585173 is about 8098.4673241299. The cubic root of 65585173 is about 403.2755475046.

The spelling of 65585173 in words is "sixty-five million, five hundred eighty-five thousand, one hundred seventy-three".