11573567 has 2 divisors, whose sum is σ = 11573568. Its totient is φ = 11573566.

The previous prime is 11573539. The next prime is 11573621. The reversal of 11573567 is 76537511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11573567 - 2⁶ = 11573503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11573867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786783 + 5786784.

It is an arithmetic number, because the mean of its divisors is an integer number (5786784).

Almost surely, 2^11573567 is an apocalyptic number.

11573567 is a deficient number, since it is larger than the sum of its proper divisors (1).

11573567 is an equidigital number, since it uses as much as digits as its factorization.

11573567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22050, while the sum is 35.

The square root of 11573567 is about 3401.9945620180. The cubic root of 11573567 is about 226.1981646154.

The spelling of 11573567 in words is "eleven million, five hundred seventy-three thousand, five hundred sixty-seven".