12265442425 has 12 divisors (see below), whose sum is σ = 15219182160. Its totient is φ = 9805880720.

The previous prime is 12265442417. The next prime is 12265442429. The reversal of 12265442425 is 52424456221.

It is not a de Polignac number, because 12265442425 - 2³ = 12265442417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12265442429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 122995 + ... + 199144.

It is an arithmetic number, because the mean of its divisors is an integer number (1268265180).

Almost surely, 2^12265442425 is an apocalyptic number.

It is an amenable number.

12265442425 is a deficient number, since it is larger than the sum of its proper divisors (2953739735).

12265442425 is a wasteful number, since it uses less digits than its factorization.

12265442425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323672 (or 323667 counting only the distinct ones).

The product of its digits is 153600, while the sum is 37.

Adding to 12265442425 its reverse (52424456221), we get a palindrome (64689898646).

The spelling of 12265442425 in words is "twelve billion, two hundred sixty-five million, four hundred forty-two thousand, four hundred twenty-five".