12533422 has 24 divisors (see below), whose sum is σ = 21000168. Its totient is φ = 5604720.

The previous prime is 12533377. The next prime is 12533441. The reversal of 12533422 is 22433521.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 12533393 and 12533402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15828 + ... + 16600.

It is an arithmetic number, because the mean of its divisors is an integer number (875007).

Almost surely, 2^12533422 is an apocalyptic number.

12533422 is a deficient number, since it is larger than the sum of its proper divisors (8466746).

12533422 is a wasteful number, since it uses less digits than its factorization.

12533422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 853 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 12533422 is about 3540.2573352795. The cubic root of 12533422 is about 232.2860991817.

Adding to 12533422 its reverse (22433521), we get a palindrome (34966943).

Subtracting 12533422 from its reverse (22433521), we obtain a palindrome (9900099).

The spelling of 12533422 in words is "twelve million, five hundred thirty-three thousand, four hundred twenty-two".