225223506 has 12 divisors (see below), whose sum is σ = 487984302. Its totient is φ = 75074496.

The previous prime is 225223501. The next prime is 225223513. The reversal of 225223506 is 605322522.

225223506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 170537481 + 54686025 = 13059^2 + 7395^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225223506.

It is not an unprimeable number, because it can be changed into a prime (225223501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6256191 + ... + 6256226.

Almost surely, 2^225223506 is an apocalyptic number.

225223506 is an abundant number, since it is smaller than the sum of its proper divisors (262760796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225223506 is a wasteful number, since it uses less digits than its factorization.

225223506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12512425 (or 12512422 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 225223506 is about 15007.4483507357. The cubic root of 225223506 is about 608.4215267811.

The spelling of 225223506 in words is "two hundred twenty-five million, two hundred twenty-three thousand, five hundred six".