65516459 has 2 divisors, whose sum is σ = 65516460. Its totient is φ = 65516458.

The previous prime is 65516431. The next prime is 65516461. The reversal of 65516459 is 95461556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65516459 - 2⁸ = 65516203 is a prime.

It is a Sophie Germain prime.

Together with 65516461, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65515459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32758229 + 32758230.

It is an arithmetic number, because the mean of its divisors is an integer number (32758230).

Almost surely, 2^65516459 is an apocalyptic number.

65516459 is a deficient number, since it is larger than the sum of its proper divisors (1).

65516459 is an equidigital number, since it uses as much as digits as its factorization.

65516459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 41.

The square root of 65516459 is about 8094.2238046647. The cubic root of 65516459 is about 403.1346601775.

The spelling of 65516459 in words is "sixty-five million, five hundred sixteen thousand, four hundred fifty-nine".