422560561 has 2 divisors, whose sum is σ = 422560562. Its totient is φ = 422560560.

The previous prime is 422560559. The next prime is 422560583. The reversal of 422560561 is 165065224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 256640400 + 165920161 = 16020^2 + 12881^2 .

It is a cyclic number.

It is not a de Polignac number, because 422560561 - 2¹ = 422560559 is a prime.

Together with 422560559, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422560511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211280280 + 211280281.

It is an arithmetic number, because the mean of its divisors is an integer number (211280281).

Almost surely, 2^422560561 is an apocalyptic number.

It is an amenable number.

422560561 is a deficient number, since it is larger than the sum of its proper divisors (1).

422560561 is an equidigital number, since it uses as much as digits as its factorization.

422560561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 422560561 is about 20556.2778975183. The cubic root of 422560561 is about 750.4060385077.

The spelling of 422560561 in words is "four hundred twenty-two million, five hundred sixty thousand, five hundred sixty-one".