12435400225 has 12 divisors (see below), whose sum is σ = 16090327296. Its totient is φ = 9515784080.

The previous prime is 12435400141. The next prime is 12435400249. The reversal of 12435400225 is 52200453421.

It is not a de Polignac number, because 12435400225 - 2¹¹ = 12435398177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12435400193 and 12435400202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10812817 + ... + 10813966.

It is an arithmetic number, because the mean of its divisors is an integer number (1340860608).

Almost surely, 2^12435400225 is an apocalyptic number.

It is an amenable number.

12435400225 is a deficient number, since it is larger than the sum of its proper divisors (3654927071).

12435400225 is a wasteful number, since it uses less digits than its factorization.

12435400225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21626816 (or 21626811 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 12435400225 its reverse (52200453421), we get a palindrome (64635853646).

The spelling of 12435400225 in words is "twelve billion, four hundred thirty-five million, four hundred thousand, two hundred twenty-five".