45450550489 has 2 divisors, whose sum is σ = 45450550490. Its totient is φ = 45450550488.

The previous prime is 45450550441. The next prime is 45450550499. The reversal of 45450550489 is 98405505454.

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., 42062728464 + 3387822025 = 205092^2 + 58205^2 .

It is a cyclic number.

It is not a de Polignac number, because 45450550489 - 2²⁵ = 45416996057 is a prime.

It is not a weakly prime, because it can be changed into another prime (45450550499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22725275244 + 22725275245.

It is an arithmetic number, because the mean of its divisors is an integer number (22725275245).

Almost surely, 2^45450550489 is an apocalyptic number.

It is an amenable number.

45450550489 is a deficient number, since it is larger than the sum of its proper divisors (1).

45450550489 is an equidigital number, since it uses as much as digits as its factorization.

45450550489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880000, while the sum is 49.

The spelling of 45450550489 in words is "forty-five billion, four hundred fifty million, five hundred fifty thousand, four hundred eighty-nine".