65065081 has 2 divisors, whose sum is σ = 65065082. Its totient is φ = 65065080.

The previous prime is 65065031. The next prime is 65065087. The reversal of 65065081 is 18056056.

65065081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60295225 + 4769856 = 7765^2 + 2184^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65065081 is a prime.

It is a super-2 number, since 2×65065081² = 8466929531073122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65065087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32532540 + 32532541.

It is an arithmetic number, because the mean of its divisors is an integer number (32532541).

Almost surely, 2^65065081 is an apocalyptic number.

It is an amenable number.

65065081 is a deficient number, since it is larger than the sum of its proper divisors (1).

65065081 is an equidigital number, since it uses as much as digits as its factorization.

65065081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 65065081 is about 8066.2928907894. The cubic root of 65065081 is about 402.2067223044.

The spelling of 65065081 in words is "sixty-five million, sixty-five thousand, eighty-one".