65750117 has 2 divisors, whose sum is σ = 65750118. Its totient is φ = 65750116.

The previous prime is 65750099. The next prime is 65750119. The reversal of 65750117 is 71105756.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52215076 + 13535041 = 7226^2 + 3679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65750117 is a prime.

Together with 65750119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65750119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32875058 + 32875059.

It is an arithmetic number, because the mean of its divisors is an integer number (32875059).

Almost surely, 2^65750117 is an apocalyptic number.

It is an amenable number.

65750117 is a deficient number, since it is larger than the sum of its proper divisors (1).

65750117 is an equidigital number, since it uses as much as digits as its factorization.

65750117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 65750117 is about 8108.6445846393. The cubic root of 65750117 is about 403.6133382654.

The spelling of 65750117 in words is "sixty-five million, seven hundred fifty thousand, one hundred seventeen".