506397013 has 2 divisors, whose sum is σ = 506397014. Its totient is φ = 506397012.

The previous prime is 506397011. The next prime is 506397019. The reversal of 506397013 is 310793605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425720689 + 80676324 = 20633^2 + 8982^2 .

It is a cyclic number.

It is not a de Polignac number, because 506397013 - 2¹ = 506397011 is a prime.

Together with 506397011, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 506397013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506397011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253198506 + 253198507.

It is an arithmetic number, because the mean of its divisors is an integer number (253198507).

Almost surely, 2^506397013 is an apocalyptic number.

It is an amenable number.

506397013 is a deficient number, since it is larger than the sum of its proper divisors (1).

506397013 is an equidigital number, since it uses as much as digits as its factorization.

506397013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 506397013 is about 22503.2667184122. The cubic root of 506397013 is about 797.0710673829.

The spelling of 506397013 in words is "five hundred six million, three hundred ninety-seven thousand, thirteen".