23042225 has 12 divisors (see below), whose sum is σ = 30253644. Its totient is φ = 17349120.

The previous prime is 23042221. The next prime is 23042237. The reversal of 23042225 is 52224032.

It can be written as a sum of positive squares in 6 ways, for example, as 1149184 + 21893041 = 1072^2 + 4679^2 .

It is not a de Polignac number, because 23042225 - 2² = 23042221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23042197 and 23042206.

It is not an unprimeable number, because it can be changed into a prime (23042221) 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, 26684 + ... + 27533.

It is an arithmetic number, because the mean of its divisors is an integer number (2521137).

Almost surely, 2^23042225 is an apocalyptic number.

23042225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23042225 is a deficient number, since it is larger than the sum of its proper divisors (7211419).

23042225 is a wasteful number, since it uses less digits than its factorization.

23042225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54244 (or 54239 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 23042225 is about 4800.2317652380. The cubic root of 23042225 is about 284.5606238880.

Adding to 23042225 its reverse (52224032), we get a palindrome (75266257).

The spelling of 23042225 in words is "twenty-three million, forty-two thousand, two hundred twenty-five".