11524561 has 2 divisors, whose sum is σ = 11524562. Its totient is φ = 11524560.

The previous prime is 11524553. The next prime is 11524607. The reversal of 11524561 is 16542511.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11182336 + 342225 = 3344^2 + 585^2 .

It is an emirp because it is prime and its reverse (16542511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11524561 - 2³ = 11524553 is a prime.

It is not a weakly prime, because it can be changed into another prime (11524511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5762280 + 5762281.

It is an arithmetic number, because the mean of its divisors is an integer number (5762281).

Almost surely, 2^11524561 is an apocalyptic number.

It is an amenable number.

11524561 is a deficient number, since it is larger than the sum of its proper divisors (1).

11524561 is an equidigital number, since it uses as much as digits as its factorization.

11524561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 25.

The square root of 11524561 is about 3394.7843819601. The cubic root of 11524561 is about 225.8784490079.

The spelling of 11524561 in words is "eleven million, five hundred twenty-four thousand, five hundred sixty-one".