225728552 has 16 divisors (see below), whose sum is σ = 483704160. Its totient is φ = 96740784.

The previous prime is 225728549. The next prime is 225728557. The reversal of 225728552 is 255827522.

It is not an unprimeable number, because it can be changed into a prime (225728557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015378 + ... + 2015489.

It is an arithmetic number, because the mean of its divisors is an integer number (30231510).

Almost surely, 2^225728552 is an apocalyptic number.

It is an amenable number.

225728552 is an abundant number, since it is smaller than the sum of its proper divisors (257975608).

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

225728552 is a wasteful number, since it uses less digits than its factorization.

225728552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4030880 (or 4030876 counting only the distinct ones).

The product of its digits is 112000, while the sum is 38.

The square root of 225728552 is about 15024.2654396147. The cubic root of 225728552 is about 608.8759664104.

The spelling of 225728552 in words is "two hundred twenty-five million, seven hundred twenty-eight thousand, five hundred fifty-two".