505054243 has 2 divisors, whose sum is σ = 505054244. Its totient is φ = 505054242.

The previous prime is 505054211. The next prime is 505054261. The reversal of 505054243 is 342450505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505054243 - 2⁵ = 505054211 is a prime.

It is not a weakly prime, because it can be changed into another prime (505054283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252527121 + 252527122.

It is an arithmetic number, because the mean of its divisors is an integer number (252527122).

Almost surely, 2^505054243 is an apocalyptic number.

505054243 is a deficient number, since it is larger than the sum of its proper divisors (1).

505054243 is an equidigital number, since it uses as much as digits as its factorization.

505054243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 505054243 is about 22473.4119127470. The cubic root of 505054243 is about 796.3659351917.

The spelling of 505054243 in words is "five hundred five million, fifty-four thousand, two hundred forty-three".