52121858504243 has 4 divisors (see below), whose sum is σ = 56860209277368. Its totient is φ = 47383507731120.

The previous prime is 52121858504213. The next prime is 52121858504281. The reversal of 52121858504243 is 34240585812125.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 52121858504243 - 2³⁰ = 52120784762419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 52121858504191 and 52121858504200.

It is not an unprimeable number, because it can be changed into a prime (52121858504203) 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, 2369175386546 + ... + 2369175386567.

It is an arithmetic number, because the mean of its divisors is an integer number (14215052319342).

Almost surely, 2^{52121858504243} is an apocalyptic number.

52121858504243 is a deficient number, since it is larger than the sum of its proper divisors (4738350773125).

52121858504243 is a wasteful number, since it uses less digits than its factorization.

52121858504243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738350773124.

The product of its (nonzero) digits is 3072000, while the sum is 50.

The spelling of 52121858504243 in words is "fifty-two trillion, one hundred twenty-one billion, eight hundred fifty-eight million, five hundred four thousand, two hundred forty-three".