6523613 has 2 divisors, whose sum is σ = 6523614. Its totient is φ = 6523612.

The previous prime is 6523607. The next prime is 6523619. The reversal of 6523613 is 3163256.

6523613 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (6523607) and next prime (6523619).

It can be written as a sum of positive squares in only one way, i.e., 3892729 + 2630884 = 1973^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 6523613 - 2⁶ = 6523549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6523619) 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, 3261806 + 3261807.

It is an arithmetic number, because the mean of its divisors is an integer number (3261807).

Almost surely, 2^6523613 is an apocalyptic number.

It is an amenable number.

6523613 is a deficient number, since it is larger than the sum of its proper divisors (1).

6523613 is an equidigital number, since it uses as much as digits as its factorization.

6523613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 6523613 is about 2554.1364489784. The cubic root of 6523613 is about 186.8512739310.

Adding to 6523613 its reverse (3163256), we get a palindrome (9686869).

The spelling of 6523613 in words is "six million, five hundred twenty-three thousand, six hundred thirteen".