11475557 has 2 divisors, whose sum is σ = 11475558. Its totient is φ = 11475556.

The previous prime is 11475523. The next prime is 11475577. The reversal of 11475557 is 75557411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11195716 + 279841 = 3346^2 + 529^2 .

It is an emirp because it is prime and its reverse (75557411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11475557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11475577) 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, 5737778 + 5737779.

It is an arithmetic number, because the mean of its divisors is an integer number (5737779).

Almost surely, 2^11475557 is an apocalyptic number.

It is an amenable number.

11475557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11475557 is an equidigital number, since it uses as much as digits as its factorization.

11475557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24500, while the sum is 35.

The square root of 11475557 is about 3387.5591507751. The cubic root of 11475557 is about 225.5578388614.

The spelling of 11475557 in words is "eleven million, four hundred seventy-five thousand, five hundred fifty-seven".