225440297 has 8 divisors (see below), whose sum is σ = 232833600. Its totient is φ = 218115504.

The previous prime is 225440291. The next prime is 225440321. The reversal of 225440297 is 792044522.

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 225440297 - 2⁶ = 225440233 is a prime.

It is a super-2 number, since 2×225440297² = 101646655022896418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225440291) 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, 10397 + ... + 23642.

It is an arithmetic number, because the mean of its divisors is an integer number (29104200).

Almost surely, 2^225440297 is an apocalyptic number.

It is an amenable number.

225440297 is a deficient number, since it is larger than the sum of its proper divisors (7393303).

225440297 is a wasteful number, since it uses less digits than its factorization.

225440297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34255.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 225440297 is about 15014.6693936297. The cubic root of 225440297 is about 608.6166781303.

The spelling of 225440297 in words is "two hundred twenty-five million, four hundred forty thousand, two hundred ninety-seven".