22455532 has 48 divisors (see below), whose sum is σ = 44964864. Its totient is φ = 9720000.

The previous prime is 22455529. The next prime is 22455547. The reversal of 22455532 is 23555422.

It is a self number, because there is not a number n which added to its sum of digits gives 22455532.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 137683 + ... + 137845.

It is an arithmetic number, because the mean of its divisors is an integer number (936768).

Almost surely, 2^22455532 is an apocalyptic number.

22455532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22455532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

22455532 is a wasteful number, since it uses less digits than its factorization.

22455532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310 (or 308 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 22455532 is about 4738.7268332327. The cubic root of 22455532 is about 282.1247038289.

It can be divided in two parts, 2245 and 5532, that added together give a palindrome (7777).

The spelling of 22455532 in words is "twenty-two million, four hundred fifty-five thousand, five hundred thirty-two".