225523044 has 72 divisors (see below), whose sum is σ = 581188608. Its totient is φ = 73725120.

The previous prime is 225523043. The next prime is 225523049. The reversal of 225523044 is 440325522.

It is a happy number.

225523044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 225522999 and 225523017.

It is not an unprimeable number, because it can be changed into a prime (225523043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 488974 + ... + 489434.

It is an arithmetic number, because the mean of its divisors is an integer number (8072064).

Almost surely, 2^225523044 is an apocalyptic number.

It is an amenable number.

225523044 is an abundant number, since it is smaller than the sum of its proper divisors (355665564).

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

225523044 is a wasteful number, since it uses less digits than its factorization.

225523044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 700 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 225523044 is about 15017.4246793516. The cubic root of 225523044 is about 608.6911324973.

Adding to 225523044 its reverse (440325522), we get a palindrome (665848566).

The spelling of 225523044 in words is "two hundred twenty-five million, five hundred twenty-three thousand, forty-four".