52521536213 has 4 divisors (see below), whose sum is σ = 52524214080. Its totient is φ = 52518858348.

The previous prime is 52521536209. The next prime is 52521536231. The reversal of 52521536213 is 31263512525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52521536213 - 2² = 52521536209 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 (52521536233) 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, 1309295 + ... + 1348812.

It is an arithmetic number, because the mean of its divisors is an integer number (13131053520).

Almost surely, 2^52521536213 is an apocalyptic number.

It is an amenable number.

52521536213 is a deficient number, since it is larger than the sum of its proper divisors (2677867).

52521536213 is a wasteful number, since it uses less digits than its factorization.

52521536213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677866.

The product of its digits is 54000, while the sum is 35.

The spelling of 52521536213 in words is "fifty-two billion, five hundred twenty-one million, five hundred thirty-six thousand, two hundred thirteen".