23102225 has 12 divisors (see below), whose sum is σ = 29118300. Its totient is φ = 18177600.

The previous prime is 23102221. The next prime is 23102227. The reversal of 23102225 is 52220132.

It can be written as a sum of positive squares in 6 ways, for example, as 2563201 + 20539024 = 1601^2 + 4532^2 .

It is not a de Polignac number, because 23102225 - 2² = 23102221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23102221) 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, 6050 + ... + 9099.

It is an arithmetic number, because the mean of its divisors is an integer number (2426525).

Almost surely, 2^23102225 is an apocalyptic number.

23102225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23102225 is a deficient number, since it is larger than the sum of its proper divisors (6016075).

23102225 is a wasteful number, since it uses less digits than its factorization.

23102225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15220 (or 15215 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 23102225 is about 4806.4774003422. The cubic root of 23102225 is about 284.8074003950.

Adding to 23102225 its reverse (52220132), we get a palindrome (75322357).

The spelling of 23102225 in words is "twenty-three million, one hundred two thousand, two hundred twenty-five".