11543566225 has 12 divisors (see below), whose sum is σ = 14315959216. Its totient is φ = 9233603280.

The previous prime is 11543566207. The next prime is 11543566231. The reversal of 11543566225 is 52266534511.

It is not a de Polignac number, because 11543566225 - 2¹⁷ = 11543435153 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187114 + ... + 241036.

Almost surely, 2^11543566225 is an apocalyptic number.

It is an amenable number.

11543566225 is a deficient number, since it is larger than the sum of its proper divisors (2772392991).

11543566225 is an equidigital number, since it uses as much as digits as its factorization.

11543566225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62496 (or 62491 counting only the distinct ones).

The product of its digits is 216000, while the sum is 40.

The spelling of 11543566225 in words is "eleven billion, five hundred forty-three million, five hundred sixty-six thousand, two hundred twenty-five".