6446075425 has 12 divisors (see below), whose sum is σ = 8042176240. Its totient is φ = 5125219920.

The previous prime is 6446075423. The next prime is 6446075431. The reversal of 6446075425 is 5245706446.

6446075425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6446075425 - 2¹ = 6446075423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6446075423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786855 + ... + 795004.

Almost surely, 2^6446075425 is an apocalyptic number.

It is an amenable number.

6446075425 is a deficient number, since it is larger than the sum of its proper divisors (1596100815).

6446075425 is a wasteful number, since it uses less digits than its factorization.

6446075425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582032 (or 1582027 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 43.

The square root of 6446075425 is about 80287.4549665139. The cubic root of 6446075425 is about 1861.0803667867.

The spelling of 6446075425 in words is "six billion, four hundred forty-six million, seventy-five thousand, four hundred twenty-five".