65505241 has 2 divisors, whose sum is σ = 65505242. Its totient is φ = 65505240.

The previous prime is 65505149. The next prime is 65505247. The reversal of 65505241 is 14250556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64464841 + 1040400 = 8029^2 + 1020^2 .

It is a cyclic number.

It is not a de Polignac number, because 65505241 - 2²¹ = 63408089 is a prime.

It is not a weakly prime, because it can be changed into another prime (65505247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32752620 + 32752621.

It is an arithmetic number, because the mean of its divisors is an integer number (32752621).

Almost surely, 2^65505241 is an apocalyptic number.

It is an amenable number.

65505241 is a deficient number, since it is larger than the sum of its proper divisors (1).

65505241 is an equidigital number, since it uses as much as digits as its factorization.

65505241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 65505241 is about 8093.5308117039. The cubic root of 65505241 is about 403.1116500677. Note that the first 3 decimals are identical.

Adding to 65505241 its reverse (14250556), we get a palindrome (79755797).

The spelling of 65505241 in words is "sixty-five million, five hundred five thousand, two hundred forty-one".