2805405505 has 16 divisors (see below), whose sum is σ = 3852935424. Its totient is φ = 1920945600.

The previous prime is 2805405497. The next prime is 2805405529. The reversal of 2805405505 is 5055045082.

2805405505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2805405505 - 2³ = 2805405497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32637 + ... + 81706.

It is an arithmetic number, because the mean of its divisors is an integer number (240808464).

Almost surely, 2^2805405505 is an apocalyptic number.

It is an amenable number.

2805405505 is a deficient number, since it is larger than the sum of its proper divisors (1047529919).

2805405505 is a wasteful number, since it uses less digits than its factorization.

2805405505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115056.

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 2805405505 is about 52966.0788146527. The cubic root of 2805405505 is about 1410.3661683342.

The spelling of 2805405505 in words is "two billion, eight hundred five million, four hundred five thousand, five hundred five".