521800114364563 has 2 divisors, whose sum is σ = 521800114364564. Its totient is φ = 521800114364562.

The previous prime is 521800114364527. The next prime is 521800114364567. The reversal of 521800114364563 is 365463411008125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 521800114364563 - 2²⁵ = 521800080810131 is a prime.

It is not a weakly prime, because it can be changed into another prime (521800114364567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260900057182281 + 260900057182282.

It is an arithmetic number, because the mean of its divisors is an integer number (260900057182282).

Almost surely, 2^{521800114364563} is an apocalyptic number.

521800114364563 is a deficient number, since it is larger than the sum of its proper divisors (1).

521800114364563 is an equidigital number, since it uses as much as digits as its factorization.

521800114364563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 521800114364563 in words is "five hundred twenty-one trillion, eight hundred billion, one hundred fourteen million, three hundred sixty-four thousand, five hundred sixty-three".