550000505500 has 48 divisors (see below), whose sum is σ = 1217655994464. Its totient is φ = 216986486400.

The previous prime is 550000505497. The next prime is 550000505531. The reversal of 550000505500 is 5505000055.

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, 7497754 + ... + 7570753.

It is an arithmetic number, because the mean of its divisors is an integer number (25367833218).

Almost surely, 2^550000505500 is an apocalyptic number.

550000505500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550000505500 is an abundant number, since it is smaller than the sum of its proper divisors (667655488964).

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

550000505500 is a wasteful number, since it uses less digits than its factorization.

550000505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15068599 (or 15068587 counting only the distinct ones).

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

Adding to 550000505500 its reverse (5505000055), we get a palindrome (555505505555).

The spelling of 550000505500 in words is "five hundred fifty billion, five hundred five thousand, five hundred".