6386407225 has 27 divisors (see below), whose sum is σ = 8710509549. Its totient is φ = 4641463200.

The previous prime is 6386407213. The next prime is 6386407283. The reversal of 6386407225 is 5227046836.

The square root of 6386407225 is 79915.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1393006329 + 4993400896 = 37323^2 + 70664^2 .

It is not a de Polignac number, because 6386407225 - 2¹¹ = 6386405177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4394599 + ... + 4396051.

Almost surely, 2^6386407225 is an apocalyptic number.

6386407225 is the 79915-th square number.

6386407225 is the 39958-th centered octagonal number.

It is an amenable number.

6386407225 is a deficient number, since it is larger than the sum of its proper divisors (2324102324).

6386407225 is an equidigital number, since it uses as much as digits as its factorization.

6386407225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938 (or 1469 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The cubic root of 6386407225 is about 1855.3201836136.

The spelling of 6386407225 in words is "six billion, three hundred eighty-six million, four hundred seven thousand, two hundred twenty-five".