503500261622213 has 2 divisors, whose sum is σ = 503500261622214. Its totient is φ = 503500261622212.

The previous prime is 503500261622203. The next prime is 503500261622231. The reversal of 503500261622213 is 312226162005305.

Together with next prime (503500261622231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254068999169764 + 249431262452449 = 15939542^2 + 15793393^2 .

It is a cyclic number.

It is not a de Polignac number, because 503500261622213 - 2²⁰ = 503500260573637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503500261622203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251750130811106 + 251750130811107.

It is an arithmetic number, because the mean of its divisors is an integer number (251750130811107).

Almost surely, 2^{503500261622213} is an apocalyptic number.

It is an amenable number.

503500261622213 is a deficient number, since it is larger than the sum of its proper divisors (1).

503500261622213 is an equidigital number, since it uses as much as digits as its factorization.

503500261622213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 503500261622213 in words is "five hundred three trillion, five hundred billion, two hundred sixty-one million, six hundred twenty-two thousand, two hundred thirteen".