6385328825 has 6 divisors (see below), whose sum is σ = 7917807774. Its totient is φ = 5108263040.

The previous prime is 6385328797. The next prime is 6385328857. The reversal of 6385328825 is 5288235836.

It can be written as a sum of positive squares in 3 ways, for example, as 296803984 + 6088524841 = 17228^2 + 78029^2 .

It is not a de Polignac number, because 6385328825 - 2⁸ = 6385328569 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 (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127706552 + ... + 127706601.

It is an arithmetic number, because the mean of its divisors is an integer number (1319634629).

Almost surely, 2^6385328825 is an apocalyptic number.

It is an amenable number.

6385328825 is a deficient number, since it is larger than the sum of its proper divisors (1532478949).

6385328825 is a wasteful number, since it uses less digits than its factorization.

6385328825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255413163 (or 255413158 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 50.

The square root of 6385328825 is about 79908.2525462796. The cubic root of 6385328825 is about 1855.2157487912.

The spelling of 6385328825 in words is "six billion, three hundred eighty-five million, three hundred twenty-eight thousand, eight hundred twenty-five".