531052028297213 has 2 divisors, whose sum is σ = 531052028297214. Its totient is φ = 531052028297212.

The previous prime is 531052028297209. The next prime is 531052028297233. The reversal of 531052028297213 is 312792820250135.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418059444036004 + 112992584261209 = 20446502^2 + 10629797^2 .

It is a cyclic number.

It is not a de Polignac number, because 531052028297213 - 2² = 531052028297209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531052028297233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265526014148606 + 265526014148607.

It is an arithmetic number, because the mean of its divisors is an integer number (265526014148607).

Almost surely, 2^{531052028297213} is an apocalyptic number.

It is an amenable number.

531052028297213 is a deficient number, since it is larger than the sum of its proper divisors (1).

531052028297213 is an equidigital number, since it uses as much as digits as its factorization.

531052028297213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 531052028297213 in words is "five hundred thirty-one trillion, fifty-two billion, twenty-eight million, two hundred ninety-seven thousand, two hundred thirteen".