505250243 has 2 divisors, whose sum is σ = 505250244. Its totient is φ = 505250242.

The previous prime is 505250227. The next prime is 505250287. The reversal of 505250243 is 342052505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505250243 - 2⁴ = 505250227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (505250203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252625121 + 252625122.

It is an arithmetic number, because the mean of its divisors is an integer number (252625122).

Almost surely, 2^505250243 is an apocalyptic number.

505250243 is a deficient number, since it is larger than the sum of its proper divisors (1).

505250243 is an equidigital number, since it uses as much as digits as its factorization.

505250243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6000, while the sum is 26.

The square root of 505250243 is about 22477.7721983296. The cubic root of 505250243 is about 796.4689390033.

The spelling of 505250243 in words is "five hundred five million, two hundred fifty thousand, two hundred forty-three".