11553442 has 4 divisors (see below), whose sum is σ = 17330166. Its totient is φ = 5776720.

The previous prime is 11553433. The next prime is 11553449. The reversal of 11553442 is 24435511.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 11485321 + 68121 = 3389^2 + 261^2 .

It is not an unprimeable number, because it can be changed into a prime (11553449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2888359 + ... + 2888362.

Almost surely, 2^11553442 is an apocalyptic number.

11553442 is a deficient number, since it is larger than the sum of its proper divisors (5776724).

11553442 is an equidigital number, since it uses as much as digits as its factorization.

11553442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776723.

The product of its digits is 2400, while the sum is 25.

The square root of 11553442 is about 3399.0354514185. The cubic root of 11553442 is about 226.0669783468.

Adding to 11553442 its reverse (24435511), we get a palindrome (35988953).

The spelling of 11553442 in words is "eleven million, five hundred fifty-three thousand, four hundred forty-two".