52405242205 has 4 divisors (see below), whose sum is σ = 62886290652. Its totient is φ = 41924193760.

The previous prime is 52405242187. The next prime is 52405242221. The reversal of 52405242205 is 50224250425.

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 11850935044 + 40554307161 = 108862^2 + 201381^2 .

It is not a de Polignac number, because 52405242205 - 2¹¹ = 52405240157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 5240524216 + ... + 5240524225.

It is an arithmetic number, because the mean of its divisors is an integer number (15721572663).

Almost surely, 2^52405242205 is an apocalyptic number.

It is an amenable number.

52405242205 is a deficient number, since it is larger than the sum of its proper divisors (10481048447).

52405242205 is a wasteful number, since it uses less digits than its factorization.

52405242205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481048446.

The product of its (nonzero) digits is 32000, while the sum is 31.

The spelling of 52405242205 in words is "fifty-two billion, four hundred five million, two hundred forty-two thousand, two hundred five".