6456625 has 32 divisors (see below), whose sum is σ = 9464832. Its totient is φ = 4305600.

The previous prime is 6456623. The next prime is 6456641. The reversal of 6456625 is 5266546.

It is not a de Polignac number, because 6456625 - 2¹ = 6456623 is a prime.

It is a Duffinian number.

Its product of digits (43200) is a multiple of the sum of its prime divisors (216).

6456625 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6456623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41047 + ... + 41203.

It is an arithmetic number, because the mean of its divisors is an integer number (295776).

Almost surely, 2^6456625 is an apocalyptic number.

It is an amenable number.

6456625 is a deficient number, since it is larger than the sum of its proper divisors (3008207).

6456625 is a wasteful number, since it uses less digits than its factorization.

6456625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 216 counting only the distinct ones).

The product of its digits is 43200, while the sum is 34.

The square root of 6456625 is about 2540.9889806924. The cubic root of 6456625 is about 186.2095087870.

The spelling of 6456625 in words is "six million, four hundred fifty-six thousand, six hundred twenty-five".