506099813 has 2 divisors, whose sum is σ = 506099814. Its totient is φ = 506099812.

The previous prime is 506099791. The next prime is 506099849. The reversal of 506099813 is 318990605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265787809 + 240312004 = 16303^2 + 15502^2 .

It is a cyclic number.

It is not a de Polignac number, because 506099813 - 2⁶ = 506099749 is a prime.

It is a super-2 number, since 2×506099813² = 512274041437269938, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506099863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253049906 + 253049907.

It is an arithmetic number, because the mean of its divisors is an integer number (253049907).

Almost surely, 2^506099813 is an apocalyptic number.

It is an amenable number.

506099813 is a deficient number, since it is larger than the sum of its proper divisors (1).

506099813 is an equidigital number, since it uses as much as digits as its factorization.

506099813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 506099813 is about 22496.6622635448. The cubic root of 506099813 is about 796.9151055104.

The spelling of 506099813 in words is "five hundred six million, ninety-nine thousand, eight hundred thirteen".