220566473 has 2 divisors, whose sum is σ = 220566474. Its totient is φ = 220566472.

The previous prime is 220566427. The next prime is 220566557. The reversal of 220566473 is 374665022.

220566473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211644304 + 8922169 = 14548^2 + 2987^2 .

It is a cyclic number.

It is not a de Polignac number, because 220566473 - 2⁸ = 220566217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (220566673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110283236 + 110283237.

It is an arithmetic number, because the mean of its divisors is an integer number (110283237).

Almost surely, 2^220566473 is an apocalyptic number.

It is an amenable number.

220566473 is a deficient number, since it is larger than the sum of its proper divisors (1).

220566473 is an equidigital number, since it uses as much as digits as its factorization.

220566473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 220566473 is about 14851.4804985900. The cubic root of 220566473 is about 604.1987644958.

The spelling of 220566473 in words is "two hundred twenty million, five hundred sixty-six thousand, four hundred seventy-three".