225559572 has 48 divisors (see below), whose sum is σ = 605509632. Its totient is φ = 64015200.

The previous prime is 225559571. The next prime is 225559601. The reversal of 225559572 is 275955522.

225559572 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225559571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3793 + ... + 21575.

It is an arithmetic number, because the mean of its divisors is an integer number (12614784).

Almost surely, 2^225559572 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 225559572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302754816).

225559572 is an abundant number, since it is smaller than the sum of its proper divisors (379950060).

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

225559572 is a wasteful number, since it uses less digits than its factorization.

225559572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17948 (or 17946 counting only the distinct ones).

The product of its digits is 315000, while the sum is 42.

The square root of 225559572 is about 15018.6408173310. The cubic root of 225559572 is about 608.7239939868.

The spelling of 225559572 in words is "two hundred twenty-five million, five hundred fifty-nine thousand, five hundred seventy-two".