55050505500 has 96 divisors (see below), whose sum is σ = 164639861568. Its totient is φ = 14283360000.

The previous prime is 55050505487. The next prime is 55050505507. The reversal of 55050505500 is 550505055.

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

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050505507) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440451 + ... + 551450.

It is an arithmetic number, because the mean of its divisors is an integer number (1714998558).

Almost surely, 2^55050505500 is an apocalyptic number.

55050505500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55050505500 is an abundant number, since it is smaller than the sum of its proper divisors (109589356068).

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

55050505500 is a wasteful number, since it uses less digits than its factorization.

55050505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991960 (or 991948 counting only the distinct ones).

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

55050505500 divided by its reverse (550505055) gives a square (100 = 10²).

The spelling of 55050505500 in words is "fifty-five billion, fifty million, five hundred five thousand, five hundred".