506211556330243 has 4 divisors (see below), whose sum is σ = 506220431530720. Its totient is φ = 506202681129768.

The previous prime is 506211556330223. The next prime is 506211556330267. The reversal of 506211556330243 is 342033655112605.

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

It is a cyclic number.

It is not a de Polignac number, because 506211556330243 - 2²⁹ = 506211019459331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 506211556330193 and 506211556330202.

It is not an unprimeable number, because it can be changed into a prime (506211556330223) 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, 4437514683 + ... + 4437628756.

It is an arithmetic number, because the mean of its divisors is an integer number (126555107882680).

Almost surely, 2^{506211556330243} is an apocalyptic number.

506211556330243 is a deficient number, since it is larger than the sum of its proper divisors (8875200477).

506211556330243 is an equidigital number, since it uses as much as digits as its factorization.

506211556330243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8875200476.

The product of its (nonzero) digits is 1944000, while the sum is 46.

The spelling of 506211556330243 in words is "five hundred six trillion, two hundred eleven billion, five hundred fifty-six million, three hundred thirty thousand, two hundred forty-three".