6543225 has 36 divisors (see below), whose sum is σ = 12626796. Its totient is φ = 3219840.

The previous prime is 6543223. The next prime is 6543233. The reversal of 6543225 is 5223456.

6543225 is a `hidden beast` number, since 654 + 3 + 2 + 2 + 5 = 666.

6543225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 207936 + 6335289 = 456^2 + 2517^2 .

It is not a de Polignac number, because 6543225 - 2¹ = 6543223 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 5³ + 4⁷ + 3³ + 2¹⁸ + 2²² + 5⁸ .

It is not an unprimeable number, because it can be changed into a prime (6543223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1807 + ... + 4043.

Almost surely, 2^6543225 is an apocalyptic number.

6543225 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6543225 is a deficient number, since it is larger than the sum of its proper divisors (6083571).

6543225 is a wasteful number, since it uses less digits than its factorization.

6543225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266 (or 2258 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 6543225 is about 2557.9728301919. The cubic root of 6543225 is about 187.0383308615.

The spelling of 6543225 in words is "six million, five hundred forty-three thousand, two hundred twenty-five".