225544512 has 112 divisors (see below), whose sum is σ = 615574080. Its totient is φ = 72855552.

The previous prime is 225544483. The next prime is 225544519. The reversal of 225544512 is 215445522.

It is a self number, because there is not a number n which added to its sum of digits gives 225544512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225544519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1144798 + ... + 1144994.

Almost surely, 2^225544512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 225544512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307787040).

225544512 is an abundant number, since it is smaller than the sum of its proper divisors (390029568).

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

225544512 is a wasteful number, since it uses less digits than its factorization.

225544512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 358 counting only the distinct ones).

The product of its digits is 16000, while the sum is 30.

The square root of 225544512 is about 15018.1394320335. The cubic root of 225544512 is about 608.7104460693.

The spelling of 225544512 in words is "two hundred twenty-five million, five hundred forty-four thousand, five hundred twelve".