6543125 has 30 divisors (see below), whose sum is σ = 8926830. Its totient is φ = 4788000.

The previous prime is 6543101. The next prime is 6543127. The reversal of 6543125 is 5213456.

It can be written as a sum of positive squares in 5 ways, for example, as 2486929 + 4056196 = 1577^2 + 2014^2 .

It is not a de Polignac number, because 6543125 - 2¹⁰ = 6542101 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6543094 and 6543103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6543127) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 225611 + ... + 225639.

It is an arithmetic number, because the mean of its divisors is an integer number (297561).

Almost surely, 2^6543125 is an apocalyptic number.

It is an amenable number.

6543125 is a deficient number, since it is larger than the sum of its proper divisors (2383705).

6543125 is an equidigital number, since it uses as much as digits as its factorization.

6543125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 53 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 6543125 is about 2557.9532833889. The cubic root of 6543125 is about 187.0373780221.

It can be divided in two parts, 65431 and 25, that added together give a palindrome (65456).

The spelling of 6543125 in words is "six million, five hundred forty-three thousand, one hundred twenty-five".