52139216120489 has 2 divisors, whose sum is σ = 52139216120490. Its totient is φ = 52139216120488.

The previous prime is 52139216120447. The next prime is 52139216120561. The reversal of 52139216120489 is 98402161293125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52021887264400 + 117328856089 = 7212620^2 + 342533^2 .

It is a cyclic number.

It is not a de Polignac number, because 52139216120489 - 2⁴⁰ = 51039704492713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52139216120489.

It is not a weakly prime, because it can be changed into another prime (52139216120429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26069608060244 + 26069608060245.

It is an arithmetic number, because the mean of its divisors is an integer number (26069608060245).

Almost surely, 2^{52139216120489} is an apocalyptic number.

It is an amenable number.

52139216120489 is a deficient number, since it is larger than the sum of its proper divisors (1).

52139216120489 is an equidigital number, since it uses as much as digits as its factorization.

52139216120489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 52139216120489 in words is "fifty-two trillion, one hundred thirty-nine billion, two hundred sixteen million, one hundred twenty thousand, four hundred eighty-nine".