5503809918 has 16 divisors (see below), whose sum is σ = 11043017856. Its totient is φ = 1828703640.

The previous prime is 5503809907. The next prime is 5503809931. The reversal of 5503809918 is 8199083055.

It is a super-2 number, since 2×5503809918² = 60583847226950333448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472896 + ... + 1476627.

It is an arithmetic number, because the mean of its divisors is an integer number (690188616).

Almost surely, 2^5503809918 is an apocalyptic number.

5503809918 is an abundant number, since it is smaller than the sum of its proper divisors (5539207938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5503809918 is a wasteful number, since it uses less digits than its factorization.

5503809918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949839.

The product of its (nonzero) digits is 388800, while the sum is 48.

The square root of 5503809918 is about 74187.6668860802. Note that the first 3 decimals coincide. The cubic root of 5503809918 is about 1765.5816595759.

The spelling of 5503809918 in words is "five billion, five hundred three million, eight hundred nine thousand, nine hundred eighteen".