65261593 has 2 divisors, whose sum is σ = 65261594. Its totient is φ = 65261592.

The previous prime is 65261591. The next prime is 65261597. The reversal of 65261593 is 39516256.

65261593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42680089 + 22581504 = 6533^2 + 4752^2 .

It is a cyclic number.

It is not a de Polignac number, because 65261593 - 2¹ = 65261591 is a prime.

Together with 65261591, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65261591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32630796 + 32630797.

It is an arithmetic number, because the mean of its divisors is an integer number (32630797).

Almost surely, 2^65261593 is an apocalyptic number.

It is an amenable number.

65261593 is a deficient number, since it is larger than the sum of its proper divisors (1).

65261593 is an equidigital number, since it uses as much as digits as its factorization.

65261593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The square root of 65261593 is about 8078.4647675162. The cubic root of 65261593 is about 402.6112352823.

The spelling of 65261593 in words is "sixty-five million, two hundred sixty-one thousand, five hundred ninety-three".