7331640625 has 27 divisors (see below), whose sum is σ = 9231928867. Its totient is φ = 5822500000.

The previous prime is 7331640619. The next prime is 7331640661. The reversal of 7331640625 is 5260461337.

The square root of 7331640625 is 85625.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 663938289 + 6667702336 = 25767^2 + 81656^2 .

It is not a de Polignac number, because 7331640625 - 2¹¹ = 7331638577 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 53515557 + ... + 53515693.

Almost surely, 2^7331640625 is an apocalyptic number.

7331640625 is the 85625-th square number.

7331640625 is the 42813-rd centered octagonal number.

It is an amenable number.

7331640625 is a deficient number, since it is larger than the sum of its proper divisors (1900288242).

7331640625 is an frugal number, since it uses more digits than its factorization.

7331640625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The cubic root of 7331640625 is about 1942.6760660801.

The spelling of 7331640625 in words is "seven billion, three hundred thirty-one million, six hundred forty thousand, six hundred twenty-five".