225242311 has 8 divisors (see below), whose sum is σ = 265723904. Its totient is φ = 186836760.

The previous prime is 225242309. The next prime is 225242341. The reversal of 225242311 is 113242522.

It is a happy number.

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 225242311 - 2¹ = 225242309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225242341) 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, 518775 + ... + 519208.

It is an arithmetic number, because the mean of its divisors is an integer number (33215488).

Almost surely, 2^225242311 is an apocalyptic number.

225242311 is a deficient number, since it is larger than the sum of its proper divisors (40481593).

225242311 is a wasteful number, since it uses less digits than its factorization.

225242311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038021.

The product of its digits is 960, while the sum is 22.

The square root of 225242311 is about 15008.0748598879. The cubic root of 225242311 is about 608.4384596619.

Adding to 225242311 its reverse (113242522), we get a palindrome (338484833).

The spelling of 225242311 in words is "two hundred twenty-five million, two hundred forty-two thousand, three hundred eleven".