225044045 has 8 divisors (see below), whose sum is σ = 285938424. Its totient is φ = 169444864.

The previous prime is 225044041. The next prime is 225044047. The reversal of 225044045 is 540440522.

It can be written as a sum of positive squares in 4 ways, for example, as 115820644 + 109223401 = 10762^2 + 10451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225044045 - 2² = 225044041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225044041) 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, 1323704 + ... + 1323873.

It is an arithmetic number, because the mean of its divisors is an integer number (35742303).

Almost surely, 2^225044045 is an apocalyptic number.

It is an amenable number.

225044045 is a deficient number, since it is larger than the sum of its proper divisors (60894379).

225044045 is a wasteful number, since it uses less digits than its factorization.

225044045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647599.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 225044045 is about 15001.4680948233. The cubic root of 225044045 is about 608.2598844623.

Adding to 225044045 its reverse (540440522), we get a palindrome (765484567).

The spelling of 225044045 in words is "two hundred twenty-five million, forty-four thousand, forty-five".