12451425 has 48 divisors (see below), whose sum is σ = 24200832. Its totient is φ = 5529600.

The previous prime is 12451421. The next prime is 12451447. The reversal of 12451425 is 52415421.

It is not a de Polignac number, because 12451425 - 2² = 12451421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12451395 and 12451404.

It is not an unprimeable number, because it can be changed into a prime (12451421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19105 + ... + 19745.

It is an arithmetic number, because the mean of its divisors is an integer number (504184).

Almost surely, 2^12451425 is an apocalyptic number.

12451425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12451425 is a deficient number, since it is larger than the sum of its proper divisors (11749407).

12451425 is a wasteful number, since it uses less digits than its factorization.

12451425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 693 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 12451425 is about 3528.6576767944. The cubic root of 12451425 is about 231.7784311976.

Adding to 12451425 its reverse (52415421), we get a palindrome (64866846).

The spelling of 12451425 in words is "twelve million, four hundred fifty-one thousand, four hundred twenty-five".