6625222025 has 12 divisors (see below), whose sum is σ = 8217320412. Its totient is φ = 5298858240.

The previous prime is 6625222001. The next prime is 6625222067. The reversal of 6625222025 is 5202225266.

It can be written as a sum of positive squares in 6 ways, for example, as 305131024 + 6320091001 = 17468^2 + 79499^2 .

It is not a de Polignac number, because 6625222025 - 2²⁰ = 6624173449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6625221982 and 6625222000.

It is an unprimeable number.

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, 76589 + ... + 138261.

It is an arithmetic number, because the mean of its divisors is an integer number (684776701).

Almost surely, 2^6625222025 is an apocalyptic number.

It is an amenable number.

6625222025 is a deficient number, since it is larger than the sum of its proper divisors (1592098387).

6625222025 is a wasteful number, since it uses less digits than its factorization.

6625222025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65980 (or 65975 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 6625222025 is about 81395.4668578048. The cubic root of 6625222025 is about 1878.1638577402.

The spelling of 6625222025 in words is "six billion, six hundred twenty-five million, two hundred twenty-two thousand, twenty-five".