55005550500 has 96 divisors (see below), whose sum is σ = 164505414528. Its totient is φ = 14271696000.

The previous prime is 55005550493. The next prime is 55005550547. The reversal of 55005550500 is 505550055.

55005550500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×55005550500² (a number of 22 digits) contains 22 as substring.

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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 440046 + ... + 551045.

It is an arithmetic number, because the mean of its divisors is an integer number (1713598068).

Almost surely, 2^55005550500 is an apocalyptic number.

55005550500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55005550500 is an abundant number, since it is smaller than the sum of its proper divisors (109499864028).

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

55005550500 is a wasteful number, since it uses less digits than its factorization.

55005550500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991150 (or 991138 counting only the distinct ones).

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

The spelling of 55005550500 in words is "fifty-five billion, five million, five hundred fifty thousand, five hundred".