6525647 has 2 divisors, whose sum is σ = 6525648. Its totient is φ = 6525646.

The previous prime is 6525643. The next prime is 6525661. The reversal of 6525647 is 7465256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6525647 - 2² = 6525643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6525643) 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 as a sum of consecutive naturals, namely, 3262823 + 3262824.

It is an arithmetic number, because the mean of its divisors is an integer number (3262824).

Almost surely, 2^6525647 is an apocalyptic number.

6525647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6525647 is an equidigital number, since it uses as much as digits as its factorization.

6525647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50400, while the sum is 35.

The square root of 6525647 is about 2554.5345955770. The cubic root of 6525647 is about 186.8706913918.

The spelling of 6525647 in words is "six million, five hundred twenty-five thousand, six hundred forty-seven".