65548897 has 2 divisors, whose sum is σ = 65548898. Its totient is φ = 65548896.

The previous prime is 65548877. The next prime is 65548909. The reversal of 65548897 is 79884556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50680161 + 14868736 = 7119^2 + 3856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65548897 is a prime.

It is not a weakly prime, because it can be changed into another prime (65548807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32774448 + 32774449.

It is an arithmetic number, because the mean of its divisors is an integer number (32774449).

Almost surely, 2^65548897 is an apocalyptic number.

It is an amenable number.

65548897 is a deficient number, since it is larger than the sum of its proper divisors (1).

65548897 is an equidigital number, since it uses as much as digits as its factorization.

65548897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 52.

The square root of 65548897 is about 8096.2273312945. The cubic root of 65548897 is about 403.2011815002.

It can be divided in two parts, 6554 and 8897, that added together give a palindrome (15451).

The spelling of 65548897 in words is "sixty-five million, five hundred forty-eight thousand, eight hundred ninety-seven".