52505050529 has 4 divisors (see below), whose sum is σ = 52570929684. Its totient is φ = 52439171376.

The previous prime is 52505050487. The next prime is 52505050561. The reversal of 52505050529 is 92505050525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38172172129 + 14332878400 = 195377^2 + 119720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52505050529 is a prime.

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

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52505050492 and 52505050501.

It is not an unprimeable number, because it can be changed into a prime (52505050589) 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 in 3 ways as a sum of consecutive naturals, for example, 32938382 + ... + 32939975.

It is an arithmetic number, because the mean of its divisors is an integer number (13142732421).

Almost surely, 2^52505050529 is an apocalyptic number.

It is an amenable number.

52505050529 is a deficient number, since it is larger than the sum of its proper divisors (65879155).

52505050529 is an equidigital number, since it uses as much as digits as its factorization.

52505050529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65879154.

The product of its (nonzero) digits is 112500, while the sum is 38.

The spelling of 52505050529 in words is "fifty-two billion, five hundred five million, fifty thousand, five hundred twenty-nine".