265520302561313 has 16 divisors (see below), whose sum is σ = 272887563840000. Its totient is φ = 258163106003712.

The previous prime is 265520302561309. The next prime is 265520302561351. The reversal of 265520302561313 is 313165203025562.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 265520302561313 - 2² = 265520302561309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (265520302561013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3481784378 + ... + 3481860636.

It is an arithmetic number, because the mean of its divisors is an integer number (17055472740000).

Almost surely, 2^{265520302561313} is an apocalyptic number.

It is an amenable number.

265520302561313 is a deficient number, since it is larger than the sum of its proper divisors (7367261278687).

265520302561313 is a wasteful number, since it uses less digits than its factorization.

265520302561313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140984.

The product of its (nonzero) digits is 972000, while the sum is 44.

Adding to 265520302561313 its reverse (313165203025562), we get a palindrome (578685505586875).

The spelling of 265520302561313 in words is "two hundred sixty-five trillion, five hundred twenty billion, three hundred two million, five hundred sixty-one thousand, three hundred thirteen".