6622556225 has 6 divisors (see below), whose sum is σ = 8211969750. Its totient is φ = 5298044960.

The previous prime is 6622556219. The next prime is 6622556231. The reversal of 6622556225 is 5226552266.

It is an interprime number because it is at equal distance from previous prime (6622556219) and next prime (6622556231).

It can be written as a sum of positive squares in 3 ways, for example, as 53129521 + 6569426704 = 7289^2 + 81052^2 .

It is not a de Polignac number, because 6622556225 - 2⁴ = 6622556209 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132451100 + ... + 132451149.

It is an arithmetic number, because the mean of its divisors is an integer number (1368661625).

Almost surely, 2^6622556225 is an apocalyptic number.

It is an amenable number.

6622556225 is a deficient number, since it is larger than the sum of its proper divisors (1589413525).

6622556225 is a wasteful number, since it uses less digits than its factorization.

6622556225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264902259 (or 264902254 counting only the distinct ones).

The product of its digits is 432000, while the sum is 41.

The square root of 6622556225 is about 81379.0896053771. The cubic root of 6622556225 is about 1877.9119174593.

The spelling of 6622556225 in words is "six billion, six hundred twenty-two million, five hundred fifty-six thousand, two hundred twenty-five".