22505032 has 48 divisors (see below), whose sum is σ = 47209680. Its totient is φ = 10047840.

The previous prime is 22505027. The next prime is 22505033. The reversal of 22505032 is 23050522.

It is not an unprimeable number, because it can be changed into a prime (22505033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64683 + ... + 65029.

It is an arithmetic number, because the mean of its divisors is an integer number (983535).

Almost surely, 2^22505032 is an apocalyptic number.

22505032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22505032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23604840).

22505032 is an abundant number, since it is smaller than the sum of its proper divisors (24704648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22505032 is a wasteful number, since it uses less digits than its factorization.

22505032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 22505032 is about 4743.9468799724. The cubic root of 22505032 is about 282.3318528436.

Adding to 22505032 its reverse (23050522), we get a palindrome (45555554).

Subtracting 22505032 from its reverse (23050522), we obtain a triangular number (545490 = T₁₀₄₄).

The spelling of 22505032 in words is "twenty-two million, five hundred five thousand, thirty-two".