55505500550 has 12 divisors (see below), whose sum is σ = 103240231116. Its totient is φ = 22202200200.

The previous prime is 55505500537. The next prime is 55505500553. The reversal of 55505500550 is 5500550555.

55505500550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55505500550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505500553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 555054956 + ... + 555055055.

It is an arithmetic number, because the mean of its divisors is an integer number (8603352593).

Almost surely, 2^55505500550 is an apocalyptic number.

55505500550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55505500550 is a deficient number, since it is larger than the sum of its proper divisors (47734730566).

55505500550 is a wasteful number, since it uses less digits than its factorization.

55505500550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110110023 (or 1110110018 counting only the distinct ones).

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

The spelling of 55505500550 in words is "fifty-five billion, five hundred five million, five hundred thousand, five hundred fifty".