12545401425 has 48 divisors (see below), whose sum is σ = 20922619200. Its totient is φ = 6632720640.

The previous prime is 12545401423. The next prime is 12545401471. The reversal of 12545401425 is 52410454521.

It is a happy number.

12545401425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12545401425 - 2¹ = 12545401423 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12545401423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8458734 + ... + 8460216.

It is an arithmetic number, because the mean of its divisors is an integer number (435887900).

Almost surely, 2^12545401425 is an apocalyptic number.

12545401425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12545401425 is a deficient number, since it is larger than the sum of its proper divisors (8377217775).

12545401425 is a wasteful number, since it uses less digits than its factorization.

12545401425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2402 (or 2397 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 12545401425 its reverse (52410454521), we get a palindrome (64955855946).

The spelling of 12545401425 in words is "twelve billion, five hundred forty-five million, four hundred one thousand, four hundred twenty-five".