505386113 has 2 divisors, whose sum is σ = 505386114. Its totient is φ = 505386112.

The previous prime is 505386109. The next prime is 505386121. The reversal of 505386113 is 311683505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 449779264 + 55606849 = 21208^2 + 7457^2 .

It is a cyclic number.

It is not a de Polignac number, because 505386113 - 2² = 505386109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505386113.

It is not a weakly prime, because it can be changed into another prime (505386913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252693056 + 252693057.

It is an arithmetic number, because the mean of its divisors is an integer number (252693057).

Almost surely, 2^505386113 is an apocalyptic number.

It is an amenable number.

505386113 is a deficient number, since it is larger than the sum of its proper divisors (1).

505386113 is an equidigital number, since it uses as much as digits as its factorization.

505386113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 505386113 is about 22480.7943142586. The cubic root of 505386113 is about 796.5403270843.

The spelling of 505386113 in words is "five hundred five million, three hundred eighty-six thousand, one hundred thirteen".