513531529234393 has 2 divisors, whose sum is σ = 513531529234394. Its totient is φ = 513531529234392.

The previous prime is 513531529234351. The next prime is 513531529234417. The reversal of 513531529234393 is 393432925135315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 418873651758409 + 94657877475984 = 20466403^2 + 9729228^2 .

It is a cyclic number.

It is not a de Polignac number, because 513531529234393 - 2⁹ = 513531529233881 is a prime.

It is not a weakly prime, because it can be changed into another prime (513531529234333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256765764617196 + 256765764617197.

It is an arithmetic number, because the mean of its divisors is an integer number (256765764617197).

Almost surely, 2^{513531529234393} is an apocalyptic number.

It is an amenable number.

513531529234393 is a deficient number, since it is larger than the sum of its proper divisors (1).

513531529234393 is an equidigital number, since it uses as much as digits as its factorization.

513531529234393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39366000, while the sum is 58.

The spelling of 513531529234393 in words is "five hundred thirteen trillion, five hundred thirty-one billion, five hundred twenty-nine million, two hundred thirty-four thousand, three hundred ninety-three".