550323545550 has 48 divisors (see below), whose sum is σ = 1364851719792. Its totient is φ = 146747641600.

The previous prime is 550323545501. The next prime is 550323545567. The reversal of 550323545550 is 55545323055.

It is a happy number.

It is a super-3 number, since 3×550323545550³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5854522 + ... + 5947778.

It is an arithmetic number, because the mean of its divisors is an integer number (28434410829).

Almost surely, 2^550323545550 is an apocalyptic number.

550323545550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550323545550 is an abundant number, since it is smaller than the sum of its proper divisors (814528174242).

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

550323545550 is a wasteful number, since it uses less digits than its factorization.

550323545550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132613 (or 132608 counting only the distinct ones).

The product of its (nonzero) digits is 1125000, while the sum is 42.

The spelling of 550323545550 in words is "five hundred fifty billion, three hundred twenty-three million, five hundred forty-five thousand, five hundred fifty".