11256835517 has 4 divisors (see below), whose sum is σ = 11368289436. Its totient is φ = 11145381600.

The previous prime is 11256835477. The next prime is 11256835543. The reversal of 11256835517 is 71553865211.

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 9496697401 + 1760138116 = 97451^2 + 41954^2 .

It is a cyclic number.

It is not a de Polignac number, because 11256835517 - 2¹⁰ = 11256834493 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 (11256835417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55726808 + ... + 55727009.

It is an arithmetic number, because the mean of its divisors is an integer number (2842072359).

Almost surely, 2^11256835517 is an apocalyptic number.

It is an amenable number.

11256835517 is a deficient number, since it is larger than the sum of its proper divisors (111453919).

11256835517 is a wasteful number, since it uses less digits than its factorization.

11256835517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111453918.

The product of its digits is 252000, while the sum is 44.

The spelling of 11256835517 in words is "eleven billion, two hundred fifty-six million, eight hundred thirty-five thousand, five hundred seventeen".