505276243 has 2 divisors, whose sum is σ = 505276244. Its totient is φ = 505276242.

The previous prime is 505276241. The next prime is 505276271. The reversal of 505276243 is 342672505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505276243 - 2¹ = 505276241 is a prime.

Together with 505276241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 505276199 and 505276208.

It is not a weakly prime, because it can be changed into another prime (505276241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252638121 + 252638122.

It is an arithmetic number, because the mean of its divisors is an integer number (252638122).

Almost surely, 2^505276243 is an apocalyptic number.

505276243 is a deficient number, since it is larger than the sum of its proper divisors (1).

505276243 is an equidigital number, since it uses as much as digits as its factorization.

505276243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 505276243 is about 22478.3505400196. The cubic root of 505276243 is about 796.4826007729.

The spelling of 505276243 in words is "five hundred five million, two hundred seventy-six thousand, two hundred forty-three".