225478788 has 24 divisors (see below), whose sum is σ = 527271360. Its totient is φ = 74994720.

The previous prime is 225478783. The next prime is 225478789. The reversal of 225478788 is 887874522.

225478788 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 225478788.

It is not an unprimeable number, because it can be changed into a prime (225478783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14848 + ... + 25911.

It is an arithmetic number, because the mean of its divisors is an integer number (21969640).

Almost surely, 2^225478788 is an apocalyptic number.

It is an amenable number.

225478788 is an abundant number, since it is smaller than the sum of its proper divisors (301792572).

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

225478788 is a wasteful number, since it uses less digits than its factorization.

225478788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41227 (or 41225 counting only the distinct ones).

The product of its digits is 2007040, while the sum is 51.

The square root of 225478788 is about 15015.9511187270. The cubic root of 225478788 is about 608.6513139544.

The spelling of 225478788 in words is "two hundred twenty-five million, four hundred seventy-eight thousand, seven hundred eighty-eight".