506738213 has 2 divisors, whose sum is σ = 506738214. Its totient is φ = 506738212.

The previous prime is 506738201. The next prime is 506738237. The reversal of 506738213 is 312837605.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387971809 + 118766404 = 19697^2 + 10898^2 .

It is a cyclic number.

It is not a de Polignac number, because 506738213 - 2²⁰ = 505689637 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506738263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253369106 + 253369107.

It is an arithmetic number, because the mean of its divisors is an integer number (253369107).

Almost surely, 2^506738213 is an apocalyptic number.

It is an amenable number.

506738213 is a deficient number, since it is larger than the sum of its proper divisors (1).

506738213 is an equidigital number, since it uses as much as digits as its factorization.

506738213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 506738213 is about 22510.8465633792. The cubic root of 506738213 is about 797.2500439458.

The spelling of 506738213 in words is "five hundred six million, seven hundred thirty-eight thousand, two hundred thirteen".