225504111449 has 2 divisors, whose sum is σ = 225504111450. Its totient is φ = 225504111448.

The previous prime is 225504111421. The next prime is 225504111451. The reversal of 225504111449 is 944111405522.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225477774025 + 26337424 = 474845^2 + 5132^2 .

It is a cyclic number.

It is not a de Polignac number, because 225504111449 - 2¹⁶ = 225504045913 is a prime.

Together with 225504111451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (225504111499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112752055724 + 112752055725.

It is an arithmetic number, because the mean of its divisors is an integer number (112752055725).

Almost surely, 2^225504111449 is an apocalyptic number.

It is an amenable number.

225504111449 is a deficient number, since it is larger than the sum of its proper divisors (1).

225504111449 is an equidigital number, since it uses as much as digits as its factorization.

225504111449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 225504111449 in words is "two hundred twenty-five billion, five hundred four million, one hundred eleven thousand, four hundred forty-nine".