55055505500 has 24 divisors (see below), whose sum is σ = 120241225104. Its totient is φ = 22022202000.

The previous prime is 55055505497. The next prime is 55055505509. The reversal of 55055505500 is 550555055.

It is a super-2 number, since 2×55055505500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55055505509) 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, 55055006 + ... + 55056005.

It is an arithmetic number, because the mean of its divisors is an integer number (5010051046).

Almost surely, 2^55055505500 is an apocalyptic number.

55055505500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55055505500 is an abundant number, since it is smaller than the sum of its proper divisors (65185719604).

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

55055505500 is a wasteful number, since it uses less digits than its factorization.

55055505500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110111030 (or 110111018 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 35.

55055505500 divided by its reverse (550555055) gives a square (100 = 10²).

The spelling of 55055505500 in words is "fifty-five billion, fifty-five million, five hundred five thousand, five hundred".