225544433 has 6 divisors (see below), whose sum is σ = 229435554. Its totient is φ = 221718224.

The previous prime is 225544427. The next prime is 225544439. The reversal of 225544433 is 334445522.

225544433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225544427) and next prime (225544439).

It can be written as a sum of positive squares in only one way, i.e., 222815329 + 2729104 = 14927^2 + 1652^2 .

It is a de Polignac number, because none of the positive numbers 2^k-225544433 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 225544433.

It is not an unprimeable number, because it can be changed into a prime (225544439) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28916 + ... + 35877.

It is an arithmetic number, because the mean of its divisors is an integer number (38239259).

Almost surely, 2^225544433 is an apocalyptic number.

It is an amenable number.

225544433 is a deficient number, since it is larger than the sum of its proper divisors (3891121).

225544433 is an frugal number, since it uses more digits than its factorization.

225544433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64911 (or 64852 counting only the distinct ones).

The product of its digits is 57600, while the sum is 32.

The square root of 225544433 is about 15018.1368018806. The cubic root of 225544433 is about 608.7103749996.

Adding to 225544433 its reverse (334445522), we get a palindrome (559989955).

It can be divided in two parts, 22 and 5544433, that added together give a palindrome (5544455).

The spelling of 225544433 in words is "two hundred twenty-five million, five hundred forty-four thousand, four hundred thirty-three".