505035243 has 20 divisors (see below), whose sum is σ = 764779048. Its totient is φ = 332074080.

The previous prime is 505035241. The next prime is 505035247. The reversal of 505035243 is 342530505.

It is not a de Polignac number, because 505035243 - 2¹ = 505035241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505035241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36793 + ... + 48618.

Almost surely, 2^505035243 is an apocalyptic number.

505035243 is a deficient number, since it is larger than the sum of its proper divisors (259743805).

505035243 is an equidigital number, since it uses as much as digits as its factorization.

505035243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85496 (or 85487 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 505035243 is about 22472.9891870218. The cubic root of 505035243 is about 796.3559487116.

Adding to 505035243 its reverse (342530505), we get a palindrome (847565748).

The spelling of 505035243 in words is "five hundred five million, thirty-five thousand, two hundred forty-three".