505340041 has 2 divisors, whose sum is σ = 505340042. Its totient is φ = 505340040.

The previous prime is 505340039. The next prime is 505340081. The reversal of 505340041 is 140043505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493062025 + 12278016 = 22205^2 + 3504^2 .

It is a cyclic number.

It is not a de Polignac number, because 505340041 - 2¹ = 505340039 is a prime.

Together with 505340039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 505339994 and 505340021.

It is not a weakly prime, because it can be changed into another prime (505340081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252670020 + 252670021.

It is an arithmetic number, because the mean of its divisors is an integer number (252670021).

Almost surely, 2^505340041 is an apocalyptic number.

It is an amenable number.

505340041 is a deficient number, since it is larger than the sum of its proper divisors (1).

505340041 is an equidigital number, since it uses as much as digits as its factorization.

505340041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 505340041 is about 22479.7695940150. The cubic root of 505340041 is about 796.5161216170.

Adding to 505340041 its reverse (140043505), we get a palindrome (645383546).

The spelling of 505340041 in words is "five hundred five million, three hundred forty thousand, forty-one".