52113223213 has 4 divisors (see below), whose sum is σ = 53910230940. Its totient is φ = 50316215488.

The previous prime is 52113223181. The next prime is 52113223219. The reversal of 52113223213 is 31232231125.

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 44836792009 + 7276431204 = 211747^2 + 85302^2 .

It is a cyclic number.

It is not a de Polignac number, because 52113223213 - 2⁵ = 52113223181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52113223219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 898503820 + ... + 898503877.

It is an arithmetic number, because the mean of its divisors is an integer number (13477557735).

Almost surely, 2^52113223213 is an apocalyptic number.

It is an amenable number.

52113223213 is a deficient number, since it is larger than the sum of its proper divisors (1797007727).

52113223213 is a wasteful number, since it uses less digits than its factorization.

52113223213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797007726.

The product of its digits is 2160, while the sum is 25.

Adding to 52113223213 its reverse (31232231125), we get a palindrome (83345454338).

The spelling of 52113223213 in words is "fifty-two billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred thirteen".