23022225 has 30 divisors (see below), whose sum is σ = 42648870. Its totient is φ = 12277440.

The previous prime is 23022221. The next prime is 23022239. The reversal of 23022225 is 52222032.

It can be written as a sum of positive squares in 3 ways, for example, as 1871424 + 21150801 = 1368^2 + 4599^2 .

It is not a de Polignac number, because 23022225 - 2² = 23022221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23022198 and 23022207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23022221) 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 29 ways as a sum of consecutive naturals, for example, 3660 + ... + 7709.

It is an arithmetic number, because the mean of its divisors is an integer number (1421629).

Almost surely, 2^23022225 is an apocalyptic number.

23022225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23022225 is a deficient number, since it is larger than the sum of its proper divisors (19626645).

23022225 is a wasteful number, since it uses less digits than its factorization.

23022225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11391 (or 11377 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 23022225 is about 4798.1480802493. The cubic root of 23022225 is about 284.4782698636.

Adding to 23022225 its reverse (52222032), we get a palindrome (75244257).

The spelling of 23022225 in words is "twenty-three million, twenty-two thousand, two hundred twenty-five".