55550500505518 has 16 divisors (see below), whose sum is σ = 87734380533120. Its totient is φ = 26306475792696.

The previous prime is 55550500505509. The next prime is 55550500505519. The reversal of 55550500505518 is 81550500505555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55550500505519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192053130 + ... + 192342157.

It is an arithmetic number, because the mean of its divisors is an integer number (5483398783320).

Almost surely, 2^{55550500505518} is an apocalyptic number.

55550500505518 is a deficient number, since it is larger than the sum of its proper divisors (32183880027602).

55550500505518 is a wasteful number, since it uses less digits than its factorization.

55550500505518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384399111.

The product of its (nonzero) digits is 3125000, while the sum is 49.

The spelling of 55550500505518 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred five thousand, five hundred eighteen".