52085087869 has 2 divisors, whose sum is σ = 52085087870. Its totient is φ = 52085087868.

The previous prime is 52085087867. The next prime is 52085087911. The reversal of 52085087869 is 96878058025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44790219769 + 7294868100 = 211637^2 + 85410^2 .

It is a cyclic number.

It is not a de Polignac number, because 52085087869 - 2¹ = 52085087867 is a prime.

It is a super-2 number, since 2×52085087869² (a number of 22 digits) contains 22 as substring.

Together with 52085087867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52085087863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26042543934 + 26042543935.

It is an arithmetic number, because the mean of its divisors is an integer number (26042543935).

Almost surely, 2^52085087869 is an apocalyptic number.

It is an amenable number.

52085087869 is a deficient number, since it is larger than the sum of its proper divisors (1).

52085087869 is an equidigital number, since it uses as much as digits as its factorization.

52085087869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 58.

The spelling of 52085087869 in words is "fifty-two billion, eighty-five million, eighty-seven thousand, eight hundred sixty-nine".