228230025 has 24 divisors (see below), whose sum is σ = 386121120. Its totient is φ = 118890240.

The previous prime is 228230021. The next prime is 228230129. The reversal of 228230025 is 520032822.

It is not a de Polignac number, because 228230025 - 2² = 228230021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 228229977 and 228230004.

It is not an unprimeable number, because it can be changed into a prime (228230021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32160 + ... + 38609.

It is an arithmetic number, because the mean of its divisors is an integer number (16088380).

Almost surely, 2^228230025 is an apocalyptic number.

228230025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

228230025 is a deficient number, since it is larger than the sum of its proper divisors (157891095).

228230025 is a wasteful number, since it uses less digits than its factorization.

228230025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70825 (or 70820 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 228230025 is about 15107.2838392611. The cubic root of 228230025 is about 611.1168511551.

Adding to 228230025 its reverse (520032822), we get a palindrome (748262847).

The spelling of 228230025 in words is "two hundred twenty-eight million, two hundred thirty thousand, twenty-five".