6600725 has 6 divisors (see below), whose sum is σ = 8184930. Its totient is φ = 5280560.

The previous prime is 6600721. The next prime is 6600731. The reversal of 6600725 is 5270066.

It can be written as a sum of positive squares in 3 ways, for example, as 11236 + 6589489 = 106^2 + 2567^2 .

It is not a de Polignac number, because 6600725 - 2² = 6600721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6600694 and 6600703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6600721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131990 + ... + 132039.

It is an arithmetic number, because the mean of its divisors is an integer number (1364155).

Almost surely, 2^6600725 is an apocalyptic number.

It is an amenable number.

6600725 is a deficient number, since it is larger than the sum of its proper divisors (1584205).

6600725 is a wasteful number, since it uses less digits than its factorization.

6600725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264039 (or 264034 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 6600725 is about 2569.1876147919. The cubic root of 6600725 is about 187.5846136623.

The spelling of 6600725 in words is "six million, six hundred thousand, seven hundred twenty-five".