229816025 has 12 divisors (see below), whose sum is σ = 287219712. Its totient is φ = 182402640.

The previous prime is 229816009. The next prime is 229816031. The reversal of 229816025 is 520618922.

It is a happy number.

It is not a de Polignac number, because 229816025 - 2⁴ = 229816009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33017 + ... + 39366.

It is an arithmetic number, because the mean of its divisors is an integer number (23934976).

Almost surely, 2^229816025 is an apocalyptic number.

229816025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

229816025 is a deficient number, since it is larger than the sum of its proper divisors (57403687).

229816025 is a wasteful number, since it uses less digits than its factorization.

229816025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72520 (or 72515 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 229816025 is about 15159.6841985577. The cubic root of 229816025 is about 612.5291614604.

The spelling of 229816025 in words is "two hundred twenty-nine million, eight hundred sixteen thousand, twenty-five".