22232275 has 24 divisors (see below), whose sum is σ = 30161264. Its totient is φ = 16156800.

The previous prime is 22232267. The next prime is 22232279. The reversal of 22232275 is 57223222.

It is a happy number.

It is not a de Polignac number, because 22232275 - 2³ = 22232267 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22232279) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21265 + ... + 22285.

Almost surely, 2^22232275 is an apocalyptic number.

22232275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22232275 is a deficient number, since it is larger than the sum of its proper divisors (7928989).

22232275 is a wasteful number, since it uses less digits than its factorization.

22232275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1106 counting only the distinct ones).

The product of its digits is 3360, while the sum is 25.

The square root of 22232275 is about 4715.1113454509. Note that the first 3 decimals coincide. The cubic root of 22232275 is about 281.1866095819.

Adding to 22232275 its reverse (57223222), we get a palindrome (79455497).

The spelling of 22232275 in words is "twenty-two million, two hundred thirty-two thousand, two hundred seventy-five".