550555100 has 18 divisors (see below), whose sum is σ = 1194704784. Its totient is φ = 220222000.

The previous prime is 550555099. The next prime is 550555171. The reversal of 550555100 is 1555055.

It is a super-2 number, since 2×550555100² = 606221836272020000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 550555100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2752676 + ... + 2752875.

It is an arithmetic number, because the mean of its divisors is an integer number (66372488).

Almost surely, 2^550555100 is an apocalyptic number.

550555100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

550555100 is an abundant number, since it is smaller than the sum of its proper divisors (644149684).

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

550555100 is a wasteful number, since it uses less digits than its factorization.

550555100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505565 (or 5505558 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 26.

The square root of 550555100 is about 23463.9105862599. The cubic root of 550555100 is about 819.5968174585.

The spelling of 550555100 in words is "five hundred fifty million, five hundred fifty-five thousand, one hundred".