7667543225 has 6 divisors (see below), whose sum is σ = 9507753630. Its totient is φ = 6134034560.

The previous prime is 7667543203. The next prime is 7667543239. The reversal of 7667543225 is 5223457667.

It can be written as a sum of positive squares in 3 ways, for example, as 2318229904 + 5349313321 = 48148^2 + 73139^2 .

It is not a de Polignac number, because 7667543225 - 2⁶ = 7667543161 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7667543225.

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, 153350840 + ... + 153350889.

It is an arithmetic number, because the mean of its divisors is an integer number (1584625605).

Almost surely, 2^7667543225 is an apocalyptic number.

It is an amenable number.

7667543225 is a deficient number, since it is larger than the sum of its proper divisors (1840210405).

7667543225 is a wasteful number, since it uses less digits than its factorization.

7667543225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306701739 (or 306701734 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 47.

The square root of 7667543225 is about 87564.5089348419. The cubic root of 7667543225 is about 1971.9023791347.

The spelling of 7667543225 in words is "seven billion, six hundred sixty-seven million, five hundred forty-three thousand, two hundred twenty-five".