12455400225 has 12 divisors (see below), whose sum is σ = 20592928496. Its totient is φ = 6642880080.

The previous prime is 12455400187. The next prime is 12455400227. The reversal of 12455400225 is 52200455421.

It is not a de Polignac number, because 12455400225 - 2¹⁴ = 12455383841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12455400192 and 12455400201.

It is not an unprimeable number, because it can be changed into a prime (12455400227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83035927 + ... + 83036076.

Almost surely, 2^12455400225 is an apocalyptic number.

12455400225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12455400225 is a deficient number, since it is larger than the sum of its proper divisors (8137528271).

12455400225 is a wasteful number, since it uses less digits than its factorization.

12455400225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166072016 (or 166072011 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 12455400225 its reverse (52200455421), we get a palindrome (64655855646).

The spelling of 12455400225 in words is "twelve billion, four hundred fifty-five million, four hundred thousand, two hundred twenty-five".