22153532 has 12 divisors (see below), whose sum is σ = 38856720. Its totient is φ = 11051616.

The previous prime is 22153519. The next prime is 22153543. The reversal of 22153532 is 23535122.

It is a junction number, because it is equal to n+sod(n) for n = 22153498 and 22153507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4232 + ... + 7887.

It is an arithmetic number, because the mean of its divisors is an integer number (3238060).

Almost surely, 2^22153532 is an apocalyptic number.

It is an amenable number.

22153532 is a deficient number, since it is larger than the sum of its proper divisors (16703188).

22153532 is a wasteful number, since it uses less digits than its factorization.

22153532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580 (or 12578 counting only the distinct ones).

The product of its digits is 1800, while the sum is 23.

The square root of 22153532 is about 4706.7538707691. The cubic root of 22153532 is about 280.8542448970.

Adding to 22153532 its reverse (23535122), we get a palindrome (45688654).

The spelling of 22153532 in words is "twenty-two million, one hundred fifty-three thousand, five hundred thirty-two".