52531321663 has 2 divisors, whose sum is σ = 52531321664. Its totient is φ = 52531321662.

The previous prime is 52531321651. The next prime is 52531321691. The reversal of 52531321663 is 36612313525.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52531321663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52531321643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26265660831 + 26265660832.

It is an arithmetic number, because the mean of its divisors is an integer number (26265660832).

Almost surely, 2^52531321663 is an apocalyptic number.

52531321663 is a deficient number, since it is larger than the sum of its proper divisors (1).

52531321663 is an equidigital number, since it uses as much as digits as its factorization.

52531321663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 37.

The spelling of 52531321663 in words is "fifty-two billion, five hundred thirty-one million, three hundred twenty-one thousand, six hundred sixty-three".