225945720031 has 2 divisors, whose sum is σ = 225945720032. Its totient is φ = 225945720030.

The previous prime is 225945719929. The next prime is 225945720089. The reversal of 225945720031 is 130027549522.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 225945720031 - 2⁷ = 225945719903 is a prime.

It is a super-2 number, since 2×225945720031² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225945720731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112972860015 + 112972860016.

It is an arithmetic number, because the mean of its divisors is an integer number (112972860016).

Almost surely, 2^225945720031 is an apocalyptic number.

225945720031 is a deficient number, since it is larger than the sum of its proper divisors (1).

225945720031 is an equidigital number, since it uses as much as digits as its factorization.

225945720031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 225945720031 in words is "two hundred twenty-five billion, nine hundred forty-five million, seven hundred twenty thousand, thirty-one".