23622225 has 72 divisors (see below), whose sum is σ = 45517920. Its totient is φ = 10771200.

The previous prime is 23622139. The next prime is 23622227. The reversal of 23622225 is 52222632.

It is not a de Polignac number, because 23622225 - 2¹⁰ = 23621201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23622195 and 23622204.

It is not an unprimeable number, because it can be changed into a prime (23622227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 172357 + ... + 172493.

Almost surely, 2^23622225 is an apocalyptic number.

23622225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23622225 is a deficient number, since it is larger than the sum of its proper divisors (21895695).

23622225 is a wasteful number, since it uses less digits than its factorization.

23622225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 175 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 23622225 is about 4860.2700542254. The cubic root of 23622225 is about 286.9284423008.

Adding to 23622225 its reverse (52222632), we get a palindrome (75844857).

The spelling of 23622225 in words is "twenty-three million, six hundred twenty-two thousand, two hundred twenty-five".