23331225 has 48 divisors (see below), whose sum is σ = 42318720. Its totient is φ = 11289600.

The previous prime is 23331199. The next prime is 23331229. The reversal of 23331225 is 52213332.

It is not a de Polignac number, because 23331225 - 2⁵ = 23331193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23331229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36660 + ... + 37290.

It is an arithmetic number, because the mean of its divisors is an integer number (881640).

Almost surely, 2^23331225 is an apocalyptic number.

23331225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23331225 is a deficient number, since it is larger than the sum of its proper divisors (18987495).

23331225 is a wasteful number, since it uses less digits than its factorization.

23331225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690 (or 685 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 23331225 is about 4830.2406772334. The cubic root of 23331225 is about 285.7453558473.

Adding to 23331225 its reverse (52213332), we get a palindrome (75544557).

The spelling of 23331225 in words is "twenty-three million, three hundred thirty-one thousand, two hundred twenty-five".