45450550505 has 4 divisors (see below), whose sum is σ = 54540660612. Its totient is φ = 36360440400.

The previous prime is 45450550501. The next prime is 45450550511. The reversal of 45450550505 is 50505505454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50505505454 = 2 ⋅25252752727.

It can be written as a sum of positive squares in 2 ways, for example, as 14984942569 + 30465607936 = 122413^2 + 174544^2 .

It is not a de Polignac number, because 45450550505 - 2² = 45450550501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45450550501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4545055046 + ... + 4545055055.

It is an arithmetic number, because the mean of its divisors is an integer number (13635165153).

Almost surely, 2^45450550505 is an apocalyptic number.

It is an amenable number.

45450550505 is a deficient number, since it is larger than the sum of its proper divisors (9090110107).

45450550505 is an equidigital number, since it uses as much as digits as its factorization.

45450550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9090110106.

The product of its (nonzero) digits is 250000, while the sum is 38.

The spelling of 45450550505 in words is "forty-five billion, four hundred fifty million, five hundred fifty thousand, five hundred five".