52785894529 has 2 divisors, whose sum is σ = 52785894530. Its totient is φ = 52785894528.

The previous prime is 52785894527. The next prime is 52785894559. The reversal of 52785894529 is 92549858725.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52550977600 + 234916929 = 229240^2 + 15327^2 .

It is a cyclic number.

It is not a de Polignac number, because 52785894529 - 2¹ = 52785894527 is a prime.

It is a super-2 number, since 2×52785894529² (a number of 22 digits) contains 22 as substring.

Together with 52785894527, it forms a pair of twin primes.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (52785894527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26392947264 + 26392947265.

It is an arithmetic number, because the mean of its divisors is an integer number (26392947265).

Almost surely, 2^52785894529 is an apocalyptic number.

It is an amenable number.

52785894529 is a deficient number, since it is larger than the sum of its proper divisors (1).

52785894529 is an equidigital number, since it uses as much as digits as its factorization.

52785894529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576000, while the sum is 64.

The spelling of 52785894529 in words is "fifty-two billion, seven hundred eighty-five million, eight hundred ninety-four thousand, five hundred twenty-nine".