502505402101 has 2 divisors, whose sum is σ = 502505402102. Its totient is φ = 502505402100.

The previous prime is 502505402089. The next prime is 502505402141. The reversal of 502505402101 is 101204505205.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501816392100 + 689010001 = 708390^2 + 26249^2 .

It is a cyclic number.

It is not a de Polignac number, because 502505402101 - 2¹¹ = 502505400053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (502505402141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251252701050 + 251252701051.

It is an arithmetic number, because the mean of its divisors is an integer number (251252701051).

Almost surely, 2^502505402101 is an apocalyptic number.

It is an amenable number.

502505402101 is a deficient number, since it is larger than the sum of its proper divisors (1).

502505402101 is an equidigital number, since it uses as much as digits as its factorization.

502505402101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 502505402101 its reverse (101204505205), we get a palindrome (603709907306).

The spelling of 502505402101 in words is "five hundred two billion, five hundred five million, four hundred two thousand, one hundred one".