6543425 has 24 divisors (see below), whose sum is σ = 9374400. Its totient is φ = 4438080.

The previous prime is 6543403. The next prime is 6543443. The reversal of 6543425 is 5243456.

It is not a de Polignac number, because 6543425 - 2⁸ = 6543169 is a prime.

It is a Curzon 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, 24191 + ... + 24459.

It is an arithmetic number, because the mean of its divisors is an integer number (390600).

Almost surely, 2^6543425 is an apocalyptic number.

It is an amenable number.

6543425 is a deficient number, since it is larger than the sum of its proper divisors (2830975).

6543425 is a wasteful number, since it uses less digits than its factorization.

6543425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 420 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 6543425 is about 2558.0119233499. The cubic root of 6543425 is about 187.0402365113.

The spelling of 6543425 in words is "six million, five hundred forty-three thousand, four hundred twenty-five".