265350115553 has 4 divisors (see below), whose sum is σ = 265371401988. Its totient is φ = 265328829120.

The previous prime is 265350115501. The next prime is 265350115561. The reversal of 265350115553 is 355511053562.

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 123389207824 + 141960907729 = 351268^2 + 376777^2 .

It is a cyclic number.

It is not a de Polignac number, because 265350115553 - 2¹² = 265350111457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 265350115553.

It is not an unprimeable number, because it can be changed into a prime (265350115573) 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, 10624508 + ... + 10649453.

It is an arithmetic number, because the mean of its divisors is an integer number (66342850497).

Almost surely, 2^265350115553 is an apocalyptic number.

It is an amenable number.

265350115553 is a deficient number, since it is larger than the sum of its proper divisors (21286435).

265350115553 is a wasteful number, since it uses less digits than its factorization.

265350115553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21286434.

The product of its (nonzero) digits is 337500, while the sum is 41.

The spelling of 265350115553 in words is "two hundred sixty-five billion, three hundred fifty million, one hundred fifteen thousand, five hundred fifty-three".