7156669225 has 6 divisors (see below), whose sum is σ = 8874269870. Its totient is φ = 5725335360.

The previous prime is 7156669199. The next prime is 7156669237. The reversal of 7156669225 is 5229666517.

It can be written as a sum of positive squares in 3 ways, for example, as 68376361 + 7088292864 = 8269^2 + 84192^2 .

It is not a de Polignac number, because 7156669225 - 2⁹ = 7156668713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143133360 + ... + 143133409.

Almost surely, 2^7156669225 is an apocalyptic number.

It is an amenable number.

7156669225 is a deficient number, since it is larger than the sum of its proper divisors (1717600645).

7156669225 is a wasteful number, since it uses less digits than its factorization.

7156669225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286266779 (or 286266774 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 49.

The square root of 7156669225 is about 84597.0993888088. The cubic root of 7156669225 is about 1927.0973239234.

The spelling of 7156669225 in words is "seven billion, one hundred fifty-six million, six hundred sixty-nine thousand, two hundred twenty-five".