225280031 has 2 divisors, whose sum is σ = 225280032. Its totient is φ = 225280030.

The previous prime is 225279983. The next prime is 225280067. The reversal of 225280031 is 130082522.

225280031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225280031 - 2¹⁸ = 225017887 is a prime.

It is a super-2 number, since 2×225280031² = 101502184734721922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225279979 and 225280006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225280931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112640015 + 112640016.

It is an arithmetic number, because the mean of its divisors is an integer number (112640016).

Almost surely, 2^225280031 is an apocalyptic number.

225280031 is a deficient number, since it is larger than the sum of its proper divisors (1).

225280031 is an equidigital number, since it uses as much as digits as its factorization.

225280031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 225280031 is about 15009.3314641259. The cubic root of 225280031 is about 608.4724216317.

The spelling of 225280031 in words is "two hundred twenty-five million, two hundred eighty thousand, thirty-one".