4505155809 has 32 divisors (see below), whose sum is σ = 7671767040. Its totient is φ = 2283254400.

The previous prime is 4505155789. The next prime is 4505155877. The reversal of 4505155809 is 9085515054.

It is a happy number.

It is not a de Polignac number, because 4505155809 - 2⁸ = 4505155553 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4505155609) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228369 + ... + 247310.

It is an arithmetic number, because the mean of its divisors is an integer number (239742720).

Almost surely, 2^4505155809 is an apocalyptic number.

It is an amenable number.

4505155809 is a deficient number, since it is larger than the sum of its proper divisors (3166611231).

4505155809 is a wasteful number, since it uses less digits than its factorization.

4505155809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475741.

The product of its (nonzero) digits is 180000, while the sum is 42.

The square root of 4505155809 is about 67120.4574552349. The cubic root of 4505155809 is about 1651.5939062494.

The spelling of 4505155809 in words is "four billion, five hundred five million, one hundred fifty-five thousand, eight hundred nine".