11589521 has 2 divisors, whose sum is σ = 11589522. Its totient is φ = 11589520.

The previous prime is 11589517. The next prime is 11589527. The reversal of 11589521 is 12598511.

11589521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10660225 + 929296 = 3265^2 + 964^2 .

It is a cyclic number.

It is not a de Polignac number, because 11589521 - 2² = 11589517 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11589527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5794760 + 5794761.

It is an arithmetic number, because the mean of its divisors is an integer number (5794761).

Almost surely, 2^11589521 is an apocalyptic number.

It is an amenable number.

11589521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11589521 is an equidigital number, since it uses as much as digits as its factorization.

11589521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 32.

The square root of 11589521 is about 3404.3385554319. The cubic root of 11589521 is about 226.3020538939.

The spelling of 11589521 in words is "eleven million, five hundred eighty-nine thousand, five hundred twenty-one".