225603631636 has 24 divisors (see below), whose sum is σ = 397710432000. Its totient is φ = 111974297664.

The previous prime is 225603631597. The next prime is 225603631679. The reversal of 225603631636 is 636136306522.

It is a junction number, because it is equal to n+sod(n) for n = 225603631592 and 225603631601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130525 + ... + 684283.

It is an arithmetic number, because the mean of its divisors is an integer number (16571268000).

Almost surely, 2^225603631636 is an apocalyptic number.

It is an amenable number.

225603631636 is a deficient number, since it is larger than the sum of its proper divisors (172106800364).

225603631636 is a wasteful number, since it uses less digits than its factorization.

225603631636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554511 (or 554509 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 43.

The spelling of 225603631636 in words is "two hundred twenty-five billion, six hundred three million, six hundred thirty-one thousand, six hundred thirty-six".