52486317509 has 2 divisors, whose sum is σ = 52486317510. Its totient is φ = 52486317508.

The previous prime is 52486317487. The next prime is 52486317547. The reversal of 52486317509 is 90571368425.

It is a happy number.

52486317509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43797281284 + 8689036225 = 209278^2 + 93215^2 .

It is a cyclic number.

It is not a de Polignac number, because 52486317509 - 2⁸ = 52486317253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52486317109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26243158754 + 26243158755.

It is an arithmetic number, because the mean of its divisors is an integer number (26243158755).

It is a 2-persistent number, because it is pandigital, and so is 2⋅52486317509 = 104972635018, but 3⋅52486317509 = 157458952527 is not.

Almost surely, 2^52486317509 is an apocalyptic number.

It is an amenable number.

52486317509 is a deficient number, since it is larger than the sum of its proper divisors (1).

52486317509 is an equidigital number, since it uses as much as digits as its factorization.

52486317509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 52486317509 in words is "fifty-two billion, four hundred eighty-six million, three hundred seventeen thousand, five hundred nine".