65511113 has 2 divisors, whose sum is σ = 65511114. Its totient is φ = 65511112.

The previous prime is 65511079. The next prime is 65511119. The reversal of 65511113 is 31111556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51093904 + 14417209 = 7148^2 + 3797^2 .

It is a cyclic number.

It is not a de Polignac number, because 65511113 - 2²⁴ = 48733897 is a prime.

It is not a weakly prime, because it can be changed into another prime (65511119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32755556 + 32755557.

It is an arithmetic number, because the mean of its divisors is an integer number (32755557).

Almost surely, 2^65511113 is an apocalyptic number.

It is an amenable number.

65511113 is a deficient number, since it is larger than the sum of its proper divisors (1).

65511113 is an equidigital number, since it uses as much as digits as its factorization.

65511113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 450, while the sum is 23.

The square root of 65511113 is about 8093.8935624333. The cubic root of 65511113 is about 403.1236949099.

Adding to 65511113 its reverse (31111556), we get a palindrome (96622669).

The spelling of 65511113 in words is "sixty-five million, five hundred eleven thousand, one hundred thirteen".