6999238225 has 12 divisors (see below), whose sum is σ = 9918920704. Its totient is φ = 4799477520.

The previous prime is 6999238177. The next prime is 6999238229. The reversal of 6999238225 is 5228329996.

It is not a de Polignac number, because 6999238225 - 2¹¹ = 6999236177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6999238229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19997649 + ... + 19997998.

Almost surely, 2^6999238225 is an apocalyptic number.

It is an amenable number.

6999238225 is a deficient number, since it is larger than the sum of its proper divisors (2919682479).

6999238225 is a wasteful number, since it uses less digits than its factorization.

6999238225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39995664 (or 39995659 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 55.

The square root of 6999238225 is about 83661.4500531756. The cubic root of 6999238225 is about 1912.8617886764.

The spelling of 6999238225 in words is "six billion, nine hundred ninety-nine million, two hundred thirty-eight thousand, two hundred twenty-five".