52808447897 has 2 divisors, whose sum is σ = 52808447898. Its totient is φ = 52808447896.

The previous prime is 52808447821. The next prime is 52808447903. The reversal of 52808447897 is 79874480825.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45599758681 + 7208689216 = 213541^2 + 84904^2 .

It is a cyclic number.

It is not a de Polignac number, because 52808447897 - 2²⁰ = 52807399321 is a prime.

It is not a weakly prime, because it can be changed into another prime (52808441897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26404223948 + 26404223949.

It is an arithmetic number, because the mean of its divisors is an integer number (26404223949).

Almost surely, 2^52808447897 is an apocalyptic number.

It is an amenable number.

52808447897 is a deficient number, since it is larger than the sum of its proper divisors (1).

52808447897 is an equidigital number, since it uses as much as digits as its factorization.

52808447897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36126720, while the sum is 62.

The spelling of 52808447897 in words is "fifty-two billion, eight hundred eight million, four hundred forty-seven thousand, eight hundred ninety-seven".