504220243 has 2 divisors, whose sum is σ = 504220244. Its totient is φ = 504220242.

The previous prime is 504220219. The next prime is 504220247. The reversal of 504220243 is 342022405.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-504220243 is a prime.

It is not a weakly prime, because it can be changed into another prime (504220247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252110121 + 252110122.

It is an arithmetic number, because the mean of its divisors is an integer number (252110122).

Almost surely, 2^504220243 is an apocalyptic number.

504220243 is a deficient number, since it is larger than the sum of its proper divisors (1).

504220243 is an equidigital number, since it uses as much as digits as its factorization.

504220243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 504220243 is about 22454.8489863548. The cubic root of 504220243 is about 795.9273452663.

Adding to 504220243 its reverse (342022405), we get a palindrome (846242648).

The spelling of 504220243 in words is "five hundred four million, two hundred twenty thousand, two hundred forty-three".