6813330225 has 48 divisors (see below), whose sum is σ = 12147139200. Its totient is φ = 3349854720.

The previous prime is 6813330221. The next prime is 6813330233. The reversal of 6813330225 is 5220333186.

It is not a de Polignac number, because 6813330225 - 2² = 6813330221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6813330221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 813861 + ... + 822189.

It is an arithmetic number, because the mean of its divisors is an integer number (253065400).

Almost surely, 2^6813330225 is an apocalyptic number.

6813330225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6813330225 is a deficient number, since it is larger than the sum of its proper divisors (5333808975).

6813330225 is a wasteful number, since it uses less digits than its factorization.

6813330225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9194 (or 9189 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 6813330225 is about 82542.8993009090. The cubic root of 6813330225 is about 1895.7736367737.

The spelling of 6813330225 in words is "six billion, eight hundred thirteen million, three hundred thirty thousand, two hundred twenty-five".