65005111 has 2 divisors, whose sum is σ = 65005112. Its totient is φ = 65005110.

The previous prime is 65005097. The next prime is 65005123. The reversal of 65005111 is 11150056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65005111 - 2¹⁷ = 64874039 is a prime.

It is a super-2 number, since 2×65005111² = 8451328912244642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65005151) 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, 32502555 + 32502556.

It is an arithmetic number, because the mean of its divisors is an integer number (32502556).

Almost surely, 2^65005111 is an apocalyptic number.

65005111 is a deficient number, since it is larger than the sum of its proper divisors (1).

65005111 is an equidigital number, since it uses as much as digits as its factorization.

65005111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 65005111 is about 8062.5747128321. The cubic root of 65005111 is about 402.0831140080.

Adding to 65005111 its reverse (11150056), we get a palindrome (76155167).

It can be divided in two parts, 6500 and 5111, that added together give a palindrome (11611).

The spelling of 65005111 in words is "sixty-five million, five thousand, one hundred eleven".