225444004 has 12 divisors (see below), whose sum is σ = 417734604. Its totient is φ = 106091264.

The previous prime is 225443963. The next prime is 225444013. The reversal of 225444004 is 400444522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 60372900 + 165071104 = 7770^2 + 12848^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225444004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657609 + ... + 1657744.

It is an arithmetic number, because the mean of its divisors is an integer number (34811217).

Almost surely, 2^225444004 is an apocalyptic number.

It is an amenable number.

225444004 is a deficient number, since it is larger than the sum of its proper divisors (192290600).

225444004 is a wasteful number, since it uses less digits than its factorization.

225444004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315374 (or 3315372 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 225444004 is about 15014.7928390637. The cubic root of 225444004 is about 608.6200140167.

Adding to 225444004 its reverse (400444522), we get a palindrome (625888526).

The spelling of 225444004 in words is "two hundred twenty-five million, four hundred forty-four thousand, four".