52113212114521 has 4 divisors (see below), whose sum is σ = 52113232814544. Its totient is φ = 52113191414500.

The previous prime is 52113212114443. The next prime is 52113212114527. The reversal of 52113212114521 is 12541121231125.

It is a happy number.

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 52113212114521 - 2¹⁷ = 52113211983449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52113212114527) 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, 5950255 + ... + 11816596.

It is an arithmetic number, because the mean of its divisors is an integer number (13028308203636).

Almost surely, 2^{52113212114521} is an apocalyptic number.

It is an amenable number.

52113212114521 is a deficient number, since it is larger than the sum of its proper divisors (20700023).

52113212114521 is a wasteful number, since it uses less digits than its factorization.

52113212114521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20700022.

The product of its digits is 4800, while the sum is 31.

Adding to 52113212114521 its reverse (12541121231125), we get a palindrome (64654333345646).

The spelling of 52113212114521 in words is "fifty-two trillion, one hundred thirteen billion, two hundred twelve million, one hundred fourteen thousand, five hundred twenty-one".