225213004 has 24 divisors (see below), whose sum is σ = 415376640. Its totient is φ = 106548624.

The previous prime is 225212993. The next prime is 225213007. The reversal of 225213004 is 400312522.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (225213007) 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, 91737 + ... + 94159.

It is an arithmetic number, because the mean of its divisors is an integer number (17307360).

Almost surely, 2^225213004 is an apocalyptic number.

It is an amenable number.

225213004 is a deficient number, since it is larger than the sum of its proper divisors (190163636).

225213004 is a wasteful number, since it uses less digits than its factorization.

225213004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669 (or 3667 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 225213004 is about 15007.0984537318. The cubic root of 225213004 is about 608.4120698904.

Adding to 225213004 its reverse (400312522), we get a palindrome (625525526).

The spelling of 225213004 in words is "two hundred twenty-five million, two hundred thirteen thousand, four".