550550009550 has 48 divisors (see below), whose sum is σ = 1365554206080. Its totient is φ = 146792886240.

The previous prime is 550550009521. The next prime is 550550009557. The reversal of 550550009550 is 55900055055.

550550009550 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 550550009499 and 550550009508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550550009557) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840471 + ... + 1344429.

It is an arithmetic number, because the mean of its divisors is an integer number (28449045960).

Almost surely, 2^550550009550 is an apocalyptic number.

550550009550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

550550009550 is an abundant number, since it is smaller than the sum of its proper divisors (815004196530).

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

550550009550 is a wasteful number, since it uses less digits than its factorization.

550550009550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511257 (or 511252 counting only the distinct ones).

The product of its (nonzero) digits is 140625, while the sum is 39.

The spelling of 550550009550 in words is "five hundred fifty billion, five hundred fifty million, nine thousand, five hundred fifty".