65375567 has 2 divisors, whose sum is σ = 65375568. Its totient is φ = 65375566.

The previous prime is 65375549. The next prime is 65375579. The reversal of 65375567 is 76557356.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65375567 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65375507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32687783 + 32687784.

It is an arithmetic number, because the mean of its divisors is an integer number (32687784).

Almost surely, 2^65375567 is an apocalyptic number.

65375567 is a deficient number, since it is larger than the sum of its proper divisors (1).

65375567 is an equidigital number, since it uses as much as digits as its factorization.

65375567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 661500, while the sum is 44.

The square root of 65375567 is about 8085.5158771720. The cubic root of 65375567 is about 402.8454747687.

The spelling of 65375567 in words is "sixty-five million, three hundred seventy-five thousand, five hundred sixty-seven".