11567805825 has 12 divisors (see below), whose sum is σ = 19125439088. Its totient is φ = 6169496400.

The previous prime is 11567805793. The next prime is 11567805829. The reversal of 11567805825 is 52850876511.

It is not a de Polignac number, because 11567805825 - 2⁵ = 11567805793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11567805829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77118631 + ... + 77118780.

Almost surely, 2^11567805825 is an apocalyptic number.

11567805825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11567805825 is a deficient number, since it is larger than the sum of its proper divisors (7557633263).

11567805825 is a wasteful number, since it uses less digits than its factorization.

11567805825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154237424 (or 154237419 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 48.

The spelling of 11567805825 in words is "eleven billion, five hundred sixty-seven million, eight hundred five thousand, eight hundred twenty-five".