225444005 has 16 divisors (see below), whose sum is σ = 274741824. Its totient is φ = 177569280.

The previous prime is 225443963. The next prime is 225444013. The reversal of 225444005 is 500444522.

It is not a de Polignac number, because 225444005 - 2¹⁴ = 225427621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101234 + ... + 103436.

It is an arithmetic number, because the mean of its divisors is an integer number (17171364).

Almost surely, 2^225444005 is an apocalyptic number.

It is an amenable number.

225444005 is a deficient number, since it is larger than the sum of its proper divisors (49297819).

225444005 is a wasteful number, since it uses less digits than its factorization.

225444005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516.

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

The square root of 225444005 is about 15014.7928723642. The cubic root of 225444005 is about 608.6200149165.

Adding to 225444005 its reverse (500444522), we get a palindrome (725888527).

The spelling of 225444005 in words is "two hundred twenty-five million, four hundred forty-four thousand, five".