11009573 has 2 divisors, whose sum is σ = 11009574. Its totient is φ = 11009572.

The previous prime is 11009563. The next prime is 11009599. The reversal of 11009573 is 37590011.

It is an a-pointer prime, because the next prime (11009599) can be obtained adding 11009573 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10647169 + 362404 = 3263^2 + 602^2 .

It is a cyclic number.

It is not a de Polignac number, because 11009573 - 2¹⁰ = 11008549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11009533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5504786 + 5504787.

It is an arithmetic number, because the mean of its divisors is an integer number (5504787).

Almost surely, 2^11009573 is an apocalyptic number.

It is an amenable number.

11009573 is a deficient number, since it is larger than the sum of its proper divisors (1).

11009573 is an equidigital number, since it uses as much as digits as its factorization.

11009573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 11009573 is about 3318.0676605518. The cubic root of 11009573 is about 222.4625059912.

Adding to 11009573 its reverse (37590011), we get a palindrome (48599584).

The spelling of 11009573 in words is "eleven million, nine thousand, five hundred seventy-three".