6777625 has 16 divisors (see below), whose sum is σ = 8611200. Its totient is φ = 5324400.

The previous prime is 6777613. The next prime is 6777629. The reversal of 6777625 is 5267776.

It is not a de Polignac number, because 6777625 - 2⁷ = 6777497 is a prime.

6777625 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6777629) 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 15 ways as a sum of consecutive naturals, for example, 6916 + ... + 7834.

It is an arithmetic number, because the mean of its divisors is an integer number (538200).

Almost surely, 2^6777625 is an apocalyptic number.

It is an amenable number.

6777625 is a deficient number, since it is larger than the sum of its proper divisors (1833575).

6777625 is an equidigital number, since it uses as much as digits as its factorization.

6777625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 983 counting only the distinct ones).

The product of its digits is 123480, while the sum is 40.

The square root of 6777625 is about 2603.3872166852. The cubic root of 6777625 is about 189.2456237460.

The spelling of 6777625 in words is "six million, seven hundred seventy-seven thousand, six hundred twenty-five".