225623356 has 12 divisors (see below), whose sum is σ = 451246768. Its totient is φ = 96695712.

The previous prime is 225623339. The next prime is 225623357. The reversal of 225623356 is 653326522.

225623356 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225623357) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4028961 + ... + 4029016.

Almost surely, 2^225623356 is an apocalyptic number.

It is an amenable number.

225623356 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

225623356 is a wasteful number, since it uses less digits than its factorization.

225623356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8057988 (or 8057986 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

The square root of 225623356 is about 15020.7641616530. The cubic root of 225623356 is about 608.7813671405.

Adding to 225623356 its reverse (653326522), we get a palindrome (878949878).

The spelling of 225623356 in words is "two hundred twenty-five million, six hundred twenty-three thousand, three hundred fifty-six".