225612177 has 16 divisors (see below), whose sum is σ = 347934720. Its totient is φ = 127366992.

The previous prime is 225612169. The next prime is 225612223. The reversal of 225612177 is 771216522.

It is not a de Polignac number, because 225612177 - 2³ = 225612169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (225612077) 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 15 ways as a sum of consecutive naturals, for example, 62977 + ... + 66462.

It is an arithmetic number, because the mean of its divisors is an integer number (21745920).

Almost surely, 2^225612177 is an apocalyptic number.

It is an amenable number.

225612177 is a deficient number, since it is larger than the sum of its proper divisors (122322543).

225612177 is a wasteful number, since it uses less digits than its factorization.

225612177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129532.

The product of its digits is 11760, while the sum is 33.

The square root of 225612177 is about 15020.3920388251. The cubic root of 225612177 is about 608.7713125087.

Adding to 225612177 its reverse (771216522), we get a palindrome (996828699).

The spelling of 225612177 in words is "two hundred twenty-five million, six hundred twelve thousand, one hundred seventy-seven".