225311033 has 4 divisors (see below), whose sum is σ = 225538020. Its totient is φ = 225084048.

The previous prime is 225310993. The next prime is 225311057. The reversal of 225311033 is 330113522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330113522 = 2 ⋅165056761.

It can be written as a sum of positive squares in 2 ways, for example, as 160073104 + 65237929 = 12652^2 + 8077^2 .

It is a cyclic number.

It is not a de Polignac number, because 225311033 - 2²⁰ = 224262457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 225310996 and 225311014.

It is not an unprimeable number, because it can be changed into a prime (225319033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111998 + ... + 113991.

It is an arithmetic number, because the mean of its divisors is an integer number (56384505).

Almost surely, 2^225311033 is an apocalyptic number.

It is an amenable number.

225311033 is a deficient number, since it is larger than the sum of its proper divisors (226987).

225311033 is an equidigital number, since it uses as much as digits as its factorization.

225311033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226986.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 225311033 is about 15010.3641861215. The cubic root of 225311033 is about 608.5003320753.

Adding to 225311033 its reverse (330113522), we get a palindrome (555424555).

The spelling of 225311033 in words is "two hundred twenty-five million, three hundred eleven thousand, thirty-three".