229518725 has 12 divisors (see below), whose sum is σ = 296978016. Its totient is φ = 175631280.

The previous prime is 229518691. The next prime is 229518739. The reversal of 229518725 is 527815922.

It is not a de Polignac number, because 229518725 - 2⁸ = 229518469 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199007 + ... + 200156.

It is an arithmetic number, because the mean of its divisors is an integer number (24748168).

Almost surely, 2^229518725 is an apocalyptic number.

229518725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

229518725 is a deficient number, since it is larger than the sum of its proper divisors (67459291).

229518725 is a wasteful number, since it uses less digits than its factorization.

229518725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399196 (or 399191 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 229518725 is about 15149.8754120290. The cubic root of 229518725 is about 612.2649160312.

The spelling of 229518725 in words is "two hundred twenty-nine million, five hundred eighteen thousand, seven hundred twenty-five".