265235520223133 has 4 divisors (see below), whose sum is σ = 265235567934588. Its totient is φ = 265235472511680.

The previous prime is 265235520223097. The next prime is 265235520223159. The reversal of 265235520223133 is 331322025532562.

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 69267634907524 + 195967885315609 = 8322718^2 + 13998853^2 .

It is a cyclic number.

It is not a de Polignac number, because 265235520223133 - 2¹² = 265235520219037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265235520223183) 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, 14219516 + ... + 27067797.

It is an arithmetic number, because the mean of its divisors is an integer number (66308891983647).

Almost surely, 2^{265235520223133} is an apocalyptic number.

It is an amenable number.

265235520223133 is a deficient number, since it is larger than the sum of its proper divisors (47711455).

265235520223133 is an equidigital number, since it uses as much as digits as its factorization.

265235520223133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47711454.

The product of its (nonzero) digits is 1944000, while the sum is 44.

Adding to 265235520223133 its reverse (331322025532562), we get a palindrome (596557545755695).

The spelling of 265235520223133 in words is "two hundred sixty-five trillion, two hundred thirty-five billion, five hundred twenty million, two hundred twenty-three thousand, one hundred thirty-three".