45545223049 has 2 divisors, whose sum is σ = 45545223050. Its totient is φ = 45545223048.

The previous prime is 45545223013. The next prime is 45545223077. The reversal of 45545223049 is 94032254554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45388172025 + 157051024 = 213045^2 + 12532^2 .

It is a cyclic number.

It is not a de Polignac number, because 45545223049 - 2¹³ = 45545214857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45545222996 and 45545223014.

It is not a weakly prime, because it can be changed into another prime (45545223649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22772611524 + 22772611525.

It is an arithmetic number, because the mean of its divisors is an integer number (22772611525).

Almost surely, 2^45545223049 is an apocalyptic number.

It is an amenable number.

45545223049 is a deficient number, since it is larger than the sum of its proper divisors (1).

45545223049 is an equidigital number, since it uses as much as digits as its factorization.

45545223049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 45545223049 in words is "forty-five billion, five hundred forty-five million, two hundred twenty-three thousand, forty-nine".