11543312525 has 6 divisors (see below), whose sum is σ = 14313707562. Its totient is φ = 9234650000.

The previous prime is 11543312513. The next prime is 11543312527. The reversal of 11543312525 is 52521334511.

It can be written as a sum of positive squares in 3 ways, for example, as 1427177284 + 10116135241 = 37778^2 + 100579^2 .

It is not a de Polignac number, because 11543312525 - 2¹⁰ = 11543311501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11543312491 and 11543312500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11543312527) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230866226 + ... + 230866275.

It is an arithmetic number, because the mean of its divisors is an integer number (2385617927).

Almost surely, 2^11543312525 is an apocalyptic number.

It is an amenable number.

11543312525 is a deficient number, since it is larger than the sum of its proper divisors (2770395037).

11543312525 is an equidigital number, since it uses as much as digits as its factorization.

11543312525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461732511 (or 461732506 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The spelling of 11543312525 in words is "eleven billion, five hundred forty-three million, three hundred twelve thousand, five hundred twenty-five".