16422559 has 2 divisors, whose sum is σ = 16422560. Its totient is φ = 16422558.

The previous prime is 16422533. The next prime is 16422569. The reversal of 16422559 is 95522461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16422559 - 2⁹ = 16422047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16422569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8211279 + 8211280.

It is an arithmetic number, because the mean of its divisors is an integer number (8211280).

Almost surely, 2^16422559 is an apocalyptic number.

16422559 is a deficient number, since it is larger than the sum of its proper divisors (1).

16422559 is an equidigital number, since it uses as much as digits as its factorization.

16422559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

The square root of 16422559 is about 4052.4756630978. The cubic root of 16422559 is about 254.1832589485.

The spelling of 16422559 in words is "sixteen million, four hundred twenty-two thousand, five hundred fifty-nine".