11525510011 has 4 divisors (see below), whose sum is σ = 11529783000. Its totient is φ = 11521237024.

The previous prime is 11525509997. The next prime is 11525510033. The reversal of 11525510011 is 11001552511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11001552511 = 137 ⋅80303303.

It is a cyclic number.

It is not a de Polignac number, because 11525510011 - 2⁷ = 11525509883 is a prime.

It is a super-2 number, since 2×11525510011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11525510071) 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, 2132446 + ... + 2137843.

It is an arithmetic number, because the mean of its divisors is an integer number (2882445750).

Almost surely, 2^11525510011 is an apocalyptic number.

11525510011 is a deficient number, since it is larger than the sum of its proper divisors (4272989).

11525510011 is an equidigital number, since it uses as much as digits as its factorization.

11525510011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272988.

The product of its (nonzero) digits is 250, while the sum is 22.

The spelling of 11525510011 in words is "eleven billion, five hundred twenty-five million, five hundred ten thousand, eleven".