11216533 has 4 divisors (see below), whose sum is σ = 11603340. Its totient is φ = 10829728.

The previous prime is 11216521. The next prime is 11216563. The reversal of 11216533 is 33561211.

It is a happy number.

11216533 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7969329 + 3247204 = 2823^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 11216533 - 2⁵ = 11216501 is a prime.

It is a super-2 number, since 2×11216533² = 251621225080178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11216563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193360 + ... + 193417.

It is an arithmetic number, because the mean of its divisors is an integer number (2900835).

Almost surely, 2^11216533 is an apocalyptic number.

It is an amenable number.

11216533 is a deficient number, since it is larger than the sum of its proper divisors (386807).

11216533 is an equidigital number, since it uses as much as digits as its factorization.

11216533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386806.

The product of its digits is 540, while the sum is 22.

The square root of 11216533 is about 3349.1092845710. The cubic root of 11216533 is about 223.8478252679.

Adding to 11216533 its reverse (33561211), we get a palindrome (44777744).

The spelling of 11216533 in words is "eleven million, two hundred sixteen thousand, five hundred thirty-three".