11565013025 has 24 divisors (see below), whose sum is σ = 14450533440. Its totient is φ = 9181287360.

The previous prime is 11565012941. The next prime is 11565013067. The reversal of 11565013025 is 52031056511.

It is not a de Polignac number, because 11565013025 - 2⁸ = 11565012769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2958122 + ... + 2962028.

It is an arithmetic number, because the mean of its divisors is an integer number (602105560).

Almost surely, 2^11565013025 is an apocalyptic number.

It is an amenable number.

11565013025 is a deficient number, since it is larger than the sum of its proper divisors (2885520415).

11565013025 is a wasteful number, since it uses less digits than its factorization.

11565013025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793 (or 4788 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 11565013025 its reverse (52031056511), we get a palindrome (63596069536).

The spelling of 11565013025 in words is "eleven billion, five hundred sixty-five million, thirteen thousand, twenty-five".