6533238487 has 2 divisors, whose sum is σ = 6533238488. Its totient is φ = 6533238486.

The previous prime is 6533238463. The next prime is 6533238643. The reversal of 6533238487 is 7848323356.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6533238487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6533238487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6533236487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3266619243 + 3266619244.

It is an arithmetic number, because the mean of its divisors is an integer number (3266619244).

Almost surely, 2^6533238487 is an apocalyptic number.

6533238487 is a deficient number, since it is larger than the sum of its proper divisors (1).

6533238487 is an equidigital number, since it uses as much as digits as its factorization.

6533238487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 49.

The square root of 6533238487 is about 80828.4509748888. The cubic root of 6533238487 is about 1869.4312746182.

The spelling of 6533238487 in words is "six billion, five hundred thirty-three million, two hundred thirty-eight thousand, four hundred eighty-seven".