52215213305 has 4 divisors (see below), whose sum is σ = 62658255972. Its totient is φ = 41772170640.

The previous prime is 52215213301. The next prime is 52215213307. The reversal of 52215213305 is 50331251225.

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 7601747344 + 44613465961 = 87188^2 + 211219^2 .

It is not a de Polignac number, because 52215213305 - 2² = 52215213301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52215213301) 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 in 3 ways as a sum of consecutive naturals, for example, 5221521326 + ... + 5221521335.

It is an arithmetic number, because the mean of its divisors is an integer number (15664563993).

Almost surely, 2^52215213305 is an apocalyptic number.

It is an amenable number.

52215213305 is a deficient number, since it is larger than the sum of its proper divisors (10443042667).

52215213305 is a wasteful number, since it uses less digits than its factorization.

52215213305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443042666.

The product of its (nonzero) digits is 9000, while the sum is 29.

The spelling of 52215213305 in words is "fifty-two billion, two hundred fifteen million, two hundred thirteen thousand, three hundred five".