65253531340033 has 4 divisors (see below), whose sum is σ = 65253767344900. Its totient is φ = 65253295335168.

The previous prime is 65253531340009. The next prime is 65253531340073. The reversal of 65253531340033 is 33004313535256.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53447387235984 + 11806144104049 = 7310772^2 + 3436007^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65253531340033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65253531340073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117587208 + ... + 118140841.

It is an arithmetic number, because the mean of its divisors is an integer number (16313441836225).

Almost surely, 2^{65253531340033} is an apocalyptic number.

It is an amenable number.

65253531340033 is a deficient number, since it is larger than the sum of its proper divisors (236004867).

65253531340033 is a wasteful number, since it uses less digits than its factorization.

65253531340033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236004866.

The product of its (nonzero) digits is 1458000, while the sum is 43.

Adding to 65253531340033 its reverse (33004313535256), we get a palindrome (98257844875289).

The spelling of 65253531340033 in words is "sixty-five trillion, two hundred fifty-three billion, five hundred thirty-one million, three hundred forty thousand, thirty-three".