11750561 has 2 divisors, whose sum is σ = 11750562. Its totient is φ = 11750560.

The previous prime is 11750551. The next prime is 11750593. The reversal of 11750561 is 16505711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7102225 + 4648336 = 2665^2 + 2156^2 .

It is a cyclic number.

It is not a de Polignac number, because 11750561 - 2²² = 7556257 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11750561.

It is not a weakly prime, because it can be changed into another prime (11750551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5875280 + 5875281.

It is an arithmetic number, because the mean of its divisors is an integer number (5875281).

Almost surely, 2^11750561 is an apocalyptic number.

It is an amenable number.

11750561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11750561 is an equidigital number, since it uses as much as digits as its factorization.

11750561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 11750561 is about 3427.9091294840. The cubic root of 11750561 is about 227.3454152518.

The spelling of 11750561 in words is "eleven million, seven hundred fifty thousand, five hundred sixty-one".