6631005523 has 2 divisors, whose sum is σ = 6631005524. Its totient is φ = 6631005522.

The previous prime is 6631005463. The next prime is 6631005569. The reversal of 6631005523 is 3255001366.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6631005523 is a prime.

It is not a weakly prime, because it can be changed into another prime (6631005583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315502761 + 3315502762.

It is an arithmetic number, because the mean of its divisors is an integer number (3315502762).

Almost surely, 2^6631005523 is an apocalyptic number.

6631005523 is a deficient number, since it is larger than the sum of its proper divisors (1).

6631005523 is an equidigital number, since it uses as much as digits as its factorization.

6631005523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 6631005523 is about 81430.9862583034. The cubic root of 6631005523 is about 1878.7102141559.

Adding to 6631005523 its reverse (3255001366), we get a palindrome (9886006889).

The spelling of 6631005523 in words is "six billion, six hundred thirty-one million, five thousand, five hundred twenty-three".