6425500625 has 20 divisors (see below), whose sum is σ = 8501631732. Its totient is φ = 4838016000.

The previous prime is 6425500589. The next prime is 6425500637. The reversal of 6425500625 is 5260055246.

It can be written as a sum of positive squares in 10 ways, for example, as 1870735504 + 4554765121 = 43252^2 + 67489^2 .

It is not a de Polignac number, because 6425500625 - 2⁶ = 6425500561 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 (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 291752 + ... + 313001.

Almost surely, 2^6425500625 is an apocalyptic number.

It is an amenable number.

6425500625 is a deficient number, since it is larger than the sum of its proper divisors (2076131107).

6425500625 is an equidigital number, since it uses as much as digits as its factorization.

6425500625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604790 (or 604775 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

The square root of 6425500625 is about 80159.2204615289. The cubic root of 6425500625 is about 1859.0981700712.

The spelling of 6425500625 in words is "six billion, four hundred twenty-five million, five hundred thousand, six hundred twenty-five".