521741163052051 has 2 divisors, whose sum is σ = 521741163052052. Its totient is φ = 521741163052050.

The previous prime is 521741163052027. The next prime is 521741163052127. The reversal of 521741163052051 is 150250361147125.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 521741163052051 - 2⁹ = 521741163051539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 521741163051989 and 521741163052007.

It is not a weakly prime, because it can be changed into another prime (521741163052651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260870581526025 + 260870581526026.

It is an arithmetic number, because the mean of its divisors is an integer number (260870581526026).

Almost surely, 2^{521741163052051} is an apocalyptic number.

521741163052051 is a deficient number, since it is larger than the sum of its proper divisors (1).

521741163052051 is an equidigital number, since it uses as much as digits as its factorization.

521741163052051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 521741163052051 in words is "five hundred twenty-one trillion, seven hundred forty-one billion, one hundred sixty-three million, fifty-two thousand, fifty-one".