5259810065 has 16 divisors (see below), whose sum is σ = 6351363408. Its totient is φ = 4181538816.

The previous prime is 5259810053. The next prime is 5259810067. The reversal of 5259810065 is 5600189525.

5259810065 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2486418496 + 2773391569 = 49864^2 + 52663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5259810065 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5259810067) 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 in 15 ways as a sum of consecutive naturals, for example, 522419 + ... + 532391.

It is an arithmetic number, because the mean of its divisors is an integer number (396960213).

Almost surely, 2^5259810065 is an apocalyptic number.

It is an amenable number.

5259810065 is a deficient number, since it is larger than the sum of its proper divisors (1091553343).

5259810065 is a wasteful number, since it uses less digits than its factorization.

5259810065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10628.

The product of its (nonzero) digits is 108000, while the sum is 41.

The square root of 5259810065 is about 72524.5480165164. The cubic root of 5259810065 is about 1739.0951900544.

The spelling of 5259810065 in words is "five billion, two hundred fifty-nine million, eight hundred ten thousand, sixty-five".