6916225 has 12 divisors (see below), whose sum is σ = 8809084. Its totient is φ = 5382720.

The previous prime is 6916199. The next prime is 6916243. The reversal of 6916225 is 5226196.

It can be written as a sum of positive squares in 6 ways, for example, as 923521 + 5992704 = 961^2 + 2448^2 .

It is not a de Polignac number, because 6916225 - 2¹¹ = 6914177 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

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, 2814 + ... + 4663.

Almost surely, 2^6916225 is an apocalyptic number.

It is an amenable number.

6916225 is a deficient number, since it is larger than the sum of its proper divisors (1892859).

6916225 is a wasteful number, since it uses less digits than its factorization.

6916225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524 (or 7519 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 6916225 is about 2629.8716698729. The cubic root of 6916225 is about 190.5269306540.

The spelling of 6916225 in words is "six million, nine hundred sixteen thousand, two hundred twenty-five".