225297849 has 8 divisors (see below), whose sum is σ = 343311040. Its totient is φ = 128741616.

The previous prime is 225297841. The next prime is 225297869. The reversal of 225297849 is 948792522.

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

It is not a de Polignac number, because 225297849 - 2³ = 225297841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225297798 and 225297807.

It is not an unprimeable number, because it can be changed into a prime (225297841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5364214 + ... + 5364255.

It is an arithmetic number, because the mean of its divisors is an integer number (42913880).

Almost surely, 2^225297849 is an apocalyptic number.

It is an amenable number.

225297849 is a deficient number, since it is larger than the sum of its proper divisors (118013191).

225297849 is a wasteful number, since it uses less digits than its factorization.

225297849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10728479.

The product of its digits is 725760, while the sum is 48.

The square root of 225297849 is about 15009.9250164683. The cubic root of 225297849 is about 608.4884631124.

The spelling of 225297849 in words is "two hundred twenty-five million, two hundred ninety-seven thousand, eight hundred forty-nine".