65005305457 has 2 divisors, whose sum is σ = 65005305458. Its totient is φ = 65005305456.

The previous prime is 65005305389. The next prime is 65005305479. The reversal of 65005305457 is 75450350056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53455289616 + 11550015841 = 231204^2 + 107471^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65005305457 is a prime.

It is not a weakly prime, because it can be changed into another prime (65005305557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32502652728 + 32502652729.

It is an arithmetic number, because the mean of its divisors is an integer number (32502652729).

Almost surely, 2^65005305457 is an apocalyptic number.

It is an amenable number.

65005305457 is a deficient number, since it is larger than the sum of its proper divisors (1).

65005305457 is an equidigital number, since it uses as much as digits as its factorization.

65005305457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 65005305457 in words is "sixty-five billion, five million, three hundred five thousand, four hundred fifty-seven".