6544725 has 24 divisors (see below), whose sum is σ = 11805792. Its totient is φ = 3172800.

The previous prime is 6544667. The next prime is 6544739. The reversal of 6544725 is 5274456.

It is not a de Polignac number, because 6544725 - 2¹⁰ = 6543701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3142 + ... + 4791.

It is an arithmetic number, because the mean of its divisors is an integer number (491908).

Almost surely, 2^6544725 is an apocalyptic number.

It is an amenable number.

6544725 is a deficient number, since it is larger than the sum of its proper divisors (5261067).

6544725 is a wasteful number, since it uses less digits than its factorization.

6544725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7957 (or 7952 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 6544725 is about 2558.2660143152. The cubic root of 6544725 is about 187.0526222882.

The spelling of 6544725 in words is "six million, five hundred forty-four thousand, seven hundred twenty-five".