55550500505508 has 48 divisors (see below), whose sum is σ = 138151303242624. Its totient is φ = 17312193369600.

The previous prime is 55550500505503. The next prime is 55550500505509. The reversal of 55550500505508 is 80550500505555.

It is not an unprimeable number, because it can be changed into a prime (55550500505501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 901645935 + ... + 901707542.

It is an arithmetic number, because the mean of its divisors is an integer number (2878152150888).

Almost surely, 2^{55550500505508} is an apocalyptic number.

It is an amenable number.

55550500505508 is an abundant number, since it is smaller than the sum of its proper divisors (82600802737116).

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

55550500505508 is a wasteful number, since it uses less digits than its factorization.

55550500505508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803353652 (or 1803353650 counting only the distinct ones).

The product of its (nonzero) digits is 3125000, while the sum is 48.

The spelling of 55550500505508 in words is "fifty-five trillion, five hundred fifty billion, five hundred million, five hundred five thousand, five hundred eight".