22567009 has 2 divisors, whose sum is σ = 22567010. Its totient is φ = 22567008.

The previous prime is 22566997. The next prime is 22567019. The reversal of 22567009 is 90076522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22515025 + 51984 = 4745^2 + 228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22567009 is a prime.

It is not a weakly prime, because it can be changed into another prime (22567019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11283504 + 11283505.

It is an arithmetic number, because the mean of its divisors is an integer number (11283505).

Almost surely, 2^22567009 is an apocalyptic number.

It is an amenable number.

22567009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22567009 is an equidigital number, since it uses as much as digits as its factorization.

22567009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 22567009 is about 4750.4746078681. The cubic root of 22567009 is about 282.5907881640.

The spelling of 22567009 in words is "twenty-two million, five hundred sixty-seven thousand, nine".