6657725 has 12 divisors (see below), whose sum is σ = 8362560. Its totient is φ = 5257200.

The previous prime is 6657709. The next prime is 6657731. The reversal of 6657725 is 5277566.

It is not a de Polignac number, because 6657725 - 2⁴ = 6657709 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 290 + ... + 3660.

It is an arithmetic number, because the mean of its divisors is an integer number (696880).

Almost surely, 2^6657725 is an apocalyptic number.

It is an amenable number.

6657725 is a deficient number, since it is larger than the sum of its proper divisors (1704835).

6657725 is a wasteful number, since it uses less digits than its factorization.

6657725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460 (or 3455 counting only the distinct ones).

The product of its digits is 88200, while the sum is 38.

The square root of 6657725 is about 2580.2567701684. The cubic root of 6657725 is about 188.1230238237.

The spelling of 6657725 in words is "six million, six hundred fifty-seven thousand, seven hundred twenty-five".