550005005500 has 48 divisors (see below), whose sum is σ = 1220902982208. Its totient is φ = 216395400000.

The previous prime is 550005005497. The next prime is 550005005519. The reversal of 550005005500 is 5500500055.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8985976 + ... + 9046975.

It is an arithmetic number, because the mean of its divisors is an integer number (25435478796).

Almost surely, 2^550005005500 is an apocalyptic number.

550005005500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550005005500 is an abundant number, since it is smaller than the sum of its proper divisors (670897976708).

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

550005005500 is a wasteful number, since it uses less digits than its factorization.

550005005500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033031 (or 18033019 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 25.

Adding to 550005005500 its reverse (5500500055), we get a palindrome (555505505555).

The spelling of 550005005500 in words is "five hundred fifty billion, five million, five thousand, five hundred".