55555555100 has 36 divisors (see below), whose sum is σ = 120573418224. Its totient is φ = 22218929280.

The previous prime is 55555555067. The next prime is 55555555109. The reversal of 55555555100 is 155555555.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555555109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 704249 + ... + 779151.

Almost surely, 2^55555555100 is an apocalyptic number.

55555555100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55555555100 is an abundant number, since it is smaller than the sum of its proper divisors (65017863124).

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

55555555100 is a wasteful number, since it uses less digits than its factorization.

55555555100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82334 (or 82327 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 41.

It can be divided in two parts, 5555555 and 5100, that added together give a palindrome (5560655).

The spelling of 55555555100 in words is "fifty-five billion, five hundred fifty-five million, five hundred fifty-five thousand, one hundred".