6625408625 has 32 divisors (see below), whose sum is σ = 9058383360. Its totient is φ = 4798080000.

The previous prime is 6625408619. The next prime is 6625408631. The reversal of 6625408625 is 5268045266.

It is an interprime number because it is at equal distance from previous prime (6625408619) and next prime (6625408631).

It is not a de Polignac number, because 6625408625 - 2⁶ = 6625408561 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 318545 + ... + 338705.

It is an arithmetic number, because the mean of its divisors is an integer number (283074480).

Almost surely, 2^6625408625 is an apocalyptic number.

It is an amenable number.

6625408625 is a deficient number, since it is larger than the sum of its proper divisors (2432974735).

6625408625 is a wasteful number, since it uses less digits than its factorization.

6625408625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20426 (or 20416 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 44.

The square root of 6625408625 is about 81396.6131052146. The cubic root of 6625408625 is about 1878.1814904617.

The spelling of 6625408625 in words is "six billion, six hundred twenty-five million, four hundred eight thousand, six hundred twenty-five".