13000404225 has 24 divisors (see below), whose sum is σ = 21684228192. Its totient is φ = 6872185600.

The previous prime is 13000404127. The next prime is 13000404227. The reversal of 13000404225 is 52240400031.

It is not a de Polignac number, because 13000404225 - 2¹³ = 13000396033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13000404227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 758511 + ... + 775460.

It is an arithmetic number, because the mean of its divisors is an integer number (903509508).

Almost surely, 2^13000404225 is an apocalyptic number.

13000404225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13000404225 is a deficient number, since it is larger than the sum of its proper divisors (8683823967).

13000404225 is a wasteful number, since it uses less digits than its factorization.

13000404225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534097 (or 1534092 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 13000404225 its reverse (52240400031), we get a palindrome (65240804256).

The spelling of 13000404225 in words is "thirteen billion, four hundred four thousand, two hundred twenty-five".