7287314225 has 12 divisors (see below), whose sum is σ = 9057152076. Its totient is φ = 5816378880.

The previous prime is 7287314179. The next prime is 7287314239. The reversal of 7287314225 is 5224137827.

It can be written as a sum of positive squares in 6 ways, for example, as 473802289 + 6813511936 = 21767^2 + 82544^2 .

It is not a de Polignac number, because 7287314225 - 2¹⁴ = 7287297841 is a prime.

It is a super-2 number, since 2×7287314225² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325772 + ... + 347421.

It is an arithmetic number, because the mean of its divisors is an integer number (754762673).

Almost surely, 2^7287314225 is an apocalyptic number.

It is an amenable number.

7287314225 is a deficient number, since it is larger than the sum of its proper divisors (1769837851).

7287314225 is a wasteful number, since it uses less digits than its factorization.

7287314225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673636 (or 673631 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 7287314225 is about 85365.7672899389. The cubic root of 7287314225 is about 1938.7530713343.

The spelling of 7287314225 in words is "seven billion, two hundred eighty-seven million, three hundred fourteen thousand, two hundred twenty-five".