23207225 has 6 divisors (see below), whose sum is σ = 28776990. Its totient is φ = 18565760.

The previous prime is 23207203. The next prime is 23207231. The reversal of 23207225 is 52270232.

It can be written as a sum of positive squares in 3 ways, for example, as 61504 + 23145721 = 248^2 + 4811^2 .

It is not a de Polignac number, because 23207225 - 2⁸ = 23206969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23207225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 464120 + ... + 464169.

It is an arithmetic number, because the mean of its divisors is an integer number (4796165).

Almost surely, 2^23207225 is an apocalyptic number.

23207225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23207225 is a deficient number, since it is larger than the sum of its proper divisors (5569765).

23207225 is an equidigital number, since it uses as much as digits as its factorization.

23207225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928299 (or 928294 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 23207225 is about 4817.3877776239. The cubic root of 23207225 is about 285.2382331422.

Adding to 23207225 its reverse (52270232), we get a palindrome (75477457).

It can be divided in two parts, 23207 and 225, that added together give a palindrome (23432).

The spelling of 23207225 in words is "twenty-three million, two hundred seven thousand, two hundred twenty-five".