22233505 has 12 divisors (see below), whose sum is σ = 31036500. Its totient is φ = 15245664.

The previous prime is 22233503. The next prime is 22233511. The reversal of 22233505 is 50533222.

It can be written as a sum of positive squares in 2 ways, for example, as 13046544 + 9186961 = 3612^2 + 3031^2 .

It is not a de Polignac number, because 22233505 - 2¹ = 22233503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22233503) 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, 45130 + ... + 45619.

It is an arithmetic number, because the mean of its divisors is an integer number (2586375).

Almost surely, 2^22233505 is an apocalyptic number.

It is an amenable number.

22233505 is a deficient number, since it is larger than the sum of its proper divisors (8802995).

22233505 is an equidigital number, since it uses as much as digits as its factorization.

22233505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90768 (or 90761 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 22233505 is about 4715.2417753494. The cubic root of 22233505 is about 281.1917950334.

Adding to 22233505 its reverse (50533222), we get a palindrome (72766727).

The spelling of 22233505 in words is "twenty-two million, two hundred thirty-three thousand, five hundred five".