6559725 has 24 divisors (see below), whose sum is σ = 10936800. Its totient is φ = 3469120.

The previous prime is 6559717. The next prime is 6559727. The reversal of 6559725 is 5279556.

It is not a de Polignac number, because 6559725 - 2³ = 6559717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6559727) 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 23 ways as a sum of consecutive naturals, for example, 10882 + ... + 11468.

It is an arithmetic number, because the mean of its divisors is an integer number (455700).

Almost surely, 2^6559725 is an apocalyptic number.

It is an amenable number.

6559725 is a deficient number, since it is larger than the sum of its proper divisors (4377075).

6559725 is a wasteful number, since it uses less digits than its factorization.

6559725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 744 counting only the distinct ones).

The product of its digits is 94500, while the sum is 39.

The square root of 6559725 is about 2561.1960096799. The cubic root of 6559725 is about 187.1954166001.

The spelling of 6559725 in words is "six million, five hundred fifty-nine thousand, seven hundred twenty-five".