225538512 has 40 divisors (see below), whose sum is σ = 613308960. Its totient is φ = 71222400.

The previous prime is 225538501. The next prime is 225538517. The reversal of 225538512 is 215835522.

225538512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225538517) 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, 122739 + ... + 124562.

It is an arithmetic number, because the mean of its divisors is an integer number (15332724).

Almost surely, 2^225538512 is an apocalyptic number.

It is an amenable number.

225538512 is an abundant number, since it is smaller than the sum of its proper divisors (387770448).

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

225538512 is a wasteful number, since it uses less digits than its factorization.

225538512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247331 (or 247325 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 225538512 is about 15017.9396722720. The cubic root of 225538512 is about 608.7050483246.

The spelling of 225538512 in words is "two hundred twenty-five million, five hundred thirty-eight thousand, five hundred twelve".