225603437444 has 48 divisors (see below), whose sum is σ = 494558647296. Its totient is φ = 87480842400.

The previous prime is 225603437377. The next prime is 225603437453. The reversal of 225603437444 is 444734306522.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 225603437395 and 225603437404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670744 + ... + 1800719.

It is an arithmetic number, because the mean of its divisors is an integer number (10303305152).

Almost surely, 2^225603437444 is an apocalyptic number.

It is an amenable number.

225603437444 is an abundant number, since it is smaller than the sum of its proper divisors (268955209852).

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

225603437444 is a wasteful number, since it uses less digits than its factorization.

225603437444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3471696 (or 3471694 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 44.

The spelling of 225603437444 in words is "two hundred twenty-five billion, six hundred three million, four hundred thirty-seven thousand, four hundred forty-four".