23505225 has 48 divisors (see below), whose sum is σ = 40979520. Its totient is φ = 11872000.

The previous prime is 23505173. The next prime is 23505253. The reversal of 23505225 is 52250532.

It is not a de Polignac number, because 23505225 - 2⁹ = 23504713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23505195 and 23505204.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 219622 + ... + 219728.

It is an arithmetic number, because the mean of its divisors is an integer number (853740).

Almost surely, 2^23505225 is an apocalyptic number.

23505225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23505225 is a deficient number, since it is larger than the sum of its proper divisors (17474295).

23505225 is a wasteful number, since it uses less digits than its factorization.

23505225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 23505225 is about 4848.2187450650. The cubic root of 23505225 is about 286.4539427500.

Adding to 23505225 its reverse (52250532), we get a palindrome (75755757).

The spelling of 23505225 in words is "twenty-three million, five hundred five thousand, two hundred twenty-five".