65560897 has 2 divisors, whose sum is σ = 65560898. Its totient is φ = 65560896.

The previous prime is 65560889. The next prime is 65560921. The reversal of 65560897 is 79806556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45481536 + 20079361 = 6744^2 + 4481^2 .

It is a cyclic number.

It is not a de Polignac number, because 65560897 - 2³ = 65560889 is a prime.

It is not a weakly prime, because it can be changed into another prime (65560867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32780448 + 32780449.

It is an arithmetic number, because the mean of its divisors is an integer number (32780449).

Almost surely, 2^65560897 is an apocalyptic number.

It is an amenable number.

65560897 is a deficient number, since it is larger than the sum of its proper divisors (1).

65560897 is an equidigital number, since it uses as much as digits as its factorization.

65560897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 453600, while the sum is 46.

The square root of 65560897 is about 8096.9683832901. The cubic root of 65560897 is about 403.2257846040.

The spelling of 65560897 in words is "sixty-five million, five hundred sixty thousand, eight hundred ninety-seven".