22132505 has 8 divisors (see below), whose sum is σ = 26923272. Its totient is φ = 17463168.

The previous prime is 22132501. The next prime is 22132529. The reversal of 22132505 is 50523122.

It can be written as a sum of positive squares in 4 ways, for example, as 9265936 + 12866569 = 3044^2 + 3587^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22132505 - 2² = 22132501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22132501) 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 7 ways as a sum of consecutive naturals, for example, 29954 + ... + 30683.

It is an arithmetic number, because the mean of its divisors is an integer number (3365409).

Almost surely, 2^22132505 is an apocalyptic number.

It is an amenable number.

22132505 is a deficient number, since it is larger than the sum of its proper divisors (4790767).

22132505 is an equidigital number, since it uses as much as digits as its factorization.

22132505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60715.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 22132505 is about 4704.5196354144. The cubic root of 22132505 is about 280.7653592722.

Adding to 22132505 its reverse (50523122), we get a palindrome (72655627).

The spelling of 22132505 in words is "twenty-two million, one hundred thirty-two thousand, five hundred five".