5205321566051 has 2 divisors, whose sum is σ = 5205321566052. Its totient is φ = 5205321566050.

The previous prime is 5205321566033. The next prime is 5205321566077. The reversal of 5205321566051 is 1506651235025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5205321566051 - 2³⁰ = 5204247824227 is a prime.

It is not a weakly prime, because it can be changed into another prime (5205321556051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602660783025 + 2602660783026.

It is an arithmetic number, because the mean of its divisors is an integer number (2602660783026).

Almost surely, 2^{5205321566051} is an apocalyptic number.

5205321566051 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205321566051 is an equidigital number, since it uses as much as digits as its factorization.

5205321566051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

The spelling of 5205321566051 in words is "five trillion, two hundred five billion, three hundred twenty-one million, five hundred sixty-six thousand, fifty-one".