6720125 has 16 divisors (see below), whose sum is σ = 8619312. Its totient is φ = 5227200.

The previous prime is 6720089. The next prime is 6720143. The reversal of 6720125 is 5210276.

It can be written as a sum of positive squares in 8 ways, for example, as 27556 + 6692569 = 166^2 + 2587^2 .

It is not a de Polignac number, because 6720125 - 2¹⁰ = 6719101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6720125.

It is a congruent number.

It is an unprimeable number.

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, 3899 + ... + 5351.

It is an arithmetic number, because the mean of its divisors is an integer number (538707).

Almost surely, 2^6720125 is an apocalyptic number.

It is an amenable number.

6720125 is a deficient number, since it is larger than the sum of its proper divisors (1899187).

6720125 is a wasteful number, since it uses less digits than its factorization.

6720125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505 (or 1495 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 6720125 is about 2592.3203891495. The cubic root of 6720125 is about 188.7089292684.

The spelling of 6720125 in words is "six million, seven hundred twenty thousand, one hundred twenty-five".