12545025249 has 8 divisors (see below), whose sum is σ = 16744479552. Its totient is φ = 8354460560.

The previous prime is 12545025247. The next prime is 12545025313. The reversal of 12545025249 is 94252054521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12545025249 - 2¹ = 12545025247 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12545025247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2219109 + ... + 2224754.

It is an arithmetic number, because the mean of its divisors is an integer number (2093059944).

Almost surely, 2^12545025249 is an apocalyptic number.

It is an amenable number.

12545025249 is a deficient number, since it is larger than the sum of its proper divisors (4199454303).

12545025249 is an equidigital number, since it uses as much as digits as its factorization.

12545025249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444807.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 12545025249 in words is "twelve billion, five hundred forty-five million, twenty-five thousand, two hundred forty-nine".