225321031 has 8 divisors (see below), whose sum is σ = 243353600. Its totient is φ = 207388512.

The previous prime is 225320993. The next prime is 225321037. The reversal of 225321031 is 130123522.

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 225321031 - 2¹¹ = 225318983 is a prime.

It is a super-2 number, since 2×225321031² = 101539134021805922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225321037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20295 + ... + 29368.

It is an arithmetic number, because the mean of its divisors is an integer number (30419200).

Almost surely, 2^225321031 is an apocalyptic number.

225321031 is a deficient number, since it is larger than the sum of its proper divisors (18032569).

225321031 is a wasteful number, since it uses less digits than its factorization.

225321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50025.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 225321031 is about 15010.6972189835. The cubic root of 225321031 is about 608.5093325168.

Adding to 225321031 its reverse (130123522), we get a palindrome (355444553).

The spelling of 225321031 in words is "two hundred twenty-five million, three hundred twenty-one thousand, thirty-one".