6535493 has 2 divisors, whose sum is σ = 6535494. Its totient is φ = 6535492.

The previous prime is 6535457. The next prime is 6535511. The reversal of 6535493 is 3945356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6466849 + 68644 = 2543^2 + 262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6535493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6535093) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267746 + 3267747.

It is an arithmetic number, because the mean of its divisors is an integer number (3267747).

Almost surely, 2^6535493 is an apocalyptic number.

It is an amenable number.

6535493 is a deficient number, since it is larger than the sum of its proper divisors (1).

6535493 is an equidigital number, since it uses as much as digits as its factorization.

6535493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48600, while the sum is 35.

The square root of 6535493 is about 2556.4610304090. The cubic root of 6535493 is about 186.9646286536.

The spelling of 6535493 in words is "six million, five hundred thirty-five thousand, four hundred ninety-three".