225230155 has 8 divisors (see below), whose sum is σ = 270544032. Its totient is φ = 180005568.

The previous prime is 225230147. The next prime is 225230171. The reversal of 225230155 is 551032522.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225230155 - 2³ = 225230147 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 7 ways as a sum of consecutive naturals, for example, 16639 + ... + 26968.

It is an arithmetic number, because the mean of its divisors is an integer number (33818004).

Almost surely, 2^225230155 is an apocalyptic number.

225230155 is a deficient number, since it is larger than the sum of its proper divisors (45313877).

225230155 is a wasteful number, since it uses less digits than its factorization.

225230155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44645.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 225230155 is about 15007.6698724352. The cubic root of 225230155 is about 608.4275139520.

Adding to 225230155 its reverse (551032522), we get a palindrome (776262677).

The spelling of 225230155 in words is "two hundred twenty-five million, two hundred thirty thousand, one hundred fifty-five".