55000550550 has 48 divisors (see below), whose sum is σ = 148801493952. Its totient is φ = 13333466400.

The previous prime is 55000550537. The next prime is 55000550569. The reversal of 55000550550 is 5505500055.

55000550550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

55000550550 is a modest number, since divided by 550550 gives 55000 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16665184 + ... + 16668483.

It is an arithmetic number, because the mean of its divisors is an integer number (3100031124).

Almost surely, 2^55000550550 is an apocalyptic number.

55000550550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

55000550550 is an abundant number, since it is smaller than the sum of its proper divisors (93800943402).

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

55000550550 is a wasteful number, since it uses less digits than its factorization.

55000550550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33333693 (or 33333688 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

It can be divided in two parts, 55000 and 550550, that added together give a triangular number (605550 = T₁₁₀₀).

The spelling of 55000550550 in words is "fifty-five billion, five hundred fifty thousand, five hundred fifty".