225431011 has 8 divisors (see below), whose sum is σ = 242902800. Its totient is φ = 207977952.

The previous prime is 225431009. The next prime is 225431023. The reversal of 225431011 is 110134522.

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

It is not a de Polignac number, because 225431011 - 2¹ = 225431009 is a prime.

It is a super-3 number, since 3×225431011³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225431011.

It is not an unprimeable number, because it can be changed into a prime (225431711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29736 + ... + 36538.

It is an arithmetic number, because the mean of its divisors is an integer number (30362850).

Almost surely, 2^225431011 is an apocalyptic number.

225431011 is a deficient number, since it is larger than the sum of its proper divisors (17471789).

225431011 is a wasteful number, since it uses less digits than its factorization.

225431011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9365.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 225431011 is about 15014.3601595273. The cubic root of 225431011 is about 608.6083216058.

Adding to 225431011 its reverse (110134522), we get a palindrome (335565533).

The spelling of 225431011 in words is "two hundred twenty-five million, four hundred thirty-one thousand, eleven".