11222553 has 4 divisors (see below), whose sum is σ = 14963408. Its totient is φ = 7481700.

The previous prime is 11222539. The next prime is 11222573. The reversal of 11222553 is 35522211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35522211 = 3 ⋅11840737.

It is not a de Polignac number, because 11222553 - 2⁶ = 11222489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870423 + ... + 1870428.

It is an arithmetic number, because the mean of its divisors is an integer number (3740852).

Almost surely, 2^11222553 is an apocalyptic number.

It is an amenable number.

11222553 is a deficient number, since it is larger than the sum of its proper divisors (3740855).

11222553 is an equidigital number, since it uses as much as digits as its factorization.

11222553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740854.

The product of its digits is 600, while the sum is 21.

The square root of 11222553 is about 3350.0079104384. The cubic root of 11222553 is about 223.8878650584.

Subtracting from 11222553 its product of digits (600), we obtain a triangular number (11221953 = T₄₇₃₇).

Adding to 11222553 its reverse (35522211), we get a palindrome (46744764).

The spelling of 11222553 in words is "eleven million, two hundred twenty-two thousand, five hundred fifty-three".