11405533 has 2 divisors, whose sum is σ = 11405534. Its totient is φ = 11405532.

The previous prime is 11405531. The next prime is 11405549. The reversal of 11405533 is 33550411.

It is a happy number.

11405533 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., 7634169 + 3771364 = 2763^2 + 1942^2 .

It is a cyclic number.

It is not a de Polignac number, because 11405533 - 2¹ = 11405531 is a prime.

Together with 11405531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11405531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5702766 + 5702767.

It is an arithmetic number, because the mean of its divisors is an integer number (5702767).

Almost surely, 2^11405533 is an apocalyptic number.

It is an amenable number.

11405533 is a deficient number, since it is larger than the sum of its proper divisors (1).

11405533 is an equidigital number, since it uses as much as digits as its factorization.

11405533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 11405533 is about 3377.2078704160. The cubic root of 11405533 is about 225.0981168782.

Adding to 11405533 its reverse (33550411), we get a palindrome (44955944).

The spelling of 11405533 in words is "eleven million, four hundred five thousand, five hundred thirty-three".