225031 has 4 divisors (see below), whose sum is σ = 226072. Its totient is φ = 223992.

The previous prime is 225023. The next prime is 225037. The reversal of 225031 is 130522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 225031 - 2³ = 225023 is a prime.

It is a super-2 number, since 2×225031² = 101277901922, 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 (225037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60 + ... + 673.

It is an arithmetic number, because the mean of its divisors is an integer number (56518).

2²²⁵⁰³¹ is an apocalyptic number.

225031 is a deficient number, since it is larger than the sum of its proper divisors (1041).

225031 is an equidigital number, since it uses as much as digits as its factorization.

225031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 225031 is about 474.3743247690. The cubic root of 225031 is about 60.8248131350.

Adding to 225031 its reverse (130522), we get a palindrome (355553).

The spelling of 225031 in words is "two hundred twenty-five thousand, thirty-one".