11525081841 has 40 divisors (see below), whose sum is σ = 21189527744. Its totient is φ = 6079160160.

The previous prime is 11525081833. The next prime is 11525081857. The reversal of 11525081841 is 14818052511.

11525081841 is a `hidden beast` number, since 11 + 525 + 0 + 81 + 8 + 41 = 666.

It is not a de Polignac number, because 11525081841 - 2³ = 11525081833 is a prime.

It is a super-2 number, since 2×11525081841² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11525081796 and 11525081805.

It is not an unprimeable number, because it can be changed into a prime (11525081831) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 774415 + ... + 789156.

Almost surely, 2^11525081841 is an apocalyptic number.

It is an amenable number.

11525081841 is a deficient number, since it is larger than the sum of its proper divisors (9664445903).

11525081841 is a wasteful number, since it uses less digits than its factorization.

11525081841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563603 (or 1563594 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 36.

The spelling of 11525081841 in words is "eleven billion, five hundred twenty-five million, eighty-one thousand, eight hundred forty-one".