225723420049 has 2 divisors, whose sum is σ = 225723420050. Its totient is φ = 225723420048.

The previous prime is 225723420031. The next prime is 225723420077. The reversal of 225723420049 is 940024327522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121429947024 + 104293473025 = 348468^2 + 322945^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225723420049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 225723419993 and 225723420020.

It is not a weakly prime, because it can be changed into another prime (225723420649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112861710024 + 112861710025.

It is an arithmetic number, because the mean of its divisors is an integer number (112861710025).

Almost surely, 2^225723420049 is an apocalyptic number.

It is an amenable number.

225723420049 is a deficient number, since it is larger than the sum of its proper divisors (1).

225723420049 is an equidigital number, since it uses as much as digits as its factorization.

225723420049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 225723420049 in words is "two hundred twenty-five billion, seven hundred twenty-three million, four hundred twenty thousand, forty-nine".