7320871225 has 12 divisors (see below), whose sum is σ = 9079198780. Its totient is φ = 5855846400.

The previous prime is 7320871213. The next prime is 7320871231. The reversal of 7320871225 is 5221780237.

It can be written as a sum of positive squares in 6 ways, for example, as 202236841 + 7118634384 = 14221^2 + 84372^2 .

It is not a de Polignac number, because 7320871225 - 2⁵ = 7320871193 is a prime.

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, 199081 + ... + 232969.

Almost surely, 2^7320871225 is an apocalyptic number.

It is an amenable number.

7320871225 is a deficient number, since it is larger than the sum of its proper divisors (1758327555).

7320871225 is a wasteful number, since it uses less digits than its factorization.

7320871225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42540 (or 42535 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 7320871225 is about 85562.0898821435. The cubic root of 7320871225 is about 1941.7244051508.

The spelling of 7320871225 in words is "seven billion, three hundred twenty million, eight hundred seventy-one thousand, two hundred twenty-five".