13998706225 has 24 divisors (see below), whose sum is σ = 19845192128. Its totient is φ = 9595713600.

The previous prime is 13998706193. The next prime is 13998706237. The reversal of 13998706225 is 52260789931.

It is not a de Polignac number, because 13998706225 - 2⁵ = 13998706193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 544102 + ... + 569248.

Almost surely, 2^13998706225 is an apocalyptic number.

It is an amenable number.

13998706225 is a deficient number, since it is larger than the sum of its proper divisors (5846485903).

13998706225 is a wasteful number, since it uses less digits than its factorization.

13998706225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28345 (or 28340 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 13998706225 in words is "thirteen billion, nine hundred ninety-eight million, seven hundred six thousand, two hundred twenty-five".