212564563 has 2 divisors, whose sum is σ = 212564564. Its totient is φ = 212564562.

The previous prime is 212564543. The next prime is 212564587. The reversal of 212564563 is 365465212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212564563 - 2⁵ = 212564531 is a prime.

It is not a weakly prime, because it can be changed into another prime (212564543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106282281 + 106282282.

It is an arithmetic number, because the mean of its divisors is an integer number (106282282).

Almost surely, 2^212564563 is an apocalyptic number.

212564563 is a deficient number, since it is larger than the sum of its proper divisors (1).

212564563 is an equidigital number, since it uses as much as digits as its factorization.

212564563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 34.

The square root of 212564563 is about 14579.5940615643. The cubic root of 212564563 is about 596.8020250248.

The spelling of 212564563 in words is "two hundred twelve million, five hundred sixty-four thousand, five hundred sixty-three".