550355145020 has 96 divisors (see below), whose sum is σ = 1277232074496. Its totient is φ = 198324838400.

The previous prime is 550355145019. The next prime is 550355145089. The reversal of 550355145020 is 20541553055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 366365 + ... + 1111275.

It is an arithmetic number, because the mean of its divisors is an integer number (13304500776).

Almost surely, 2^550355145020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550355145020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638616037248).

550355145020 is an abundant number, since it is smaller than the sum of its proper divisors (726876929476).

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

550355145020 is a wasteful number, since it uses less digits than its factorization.

550355145020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745031 (or 745029 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 35.

Adding to 550355145020 its reverse (20541553055), we get a palindrome (570896698075).

The spelling of 550355145020 in words is "five hundred fifty billion, three hundred fifty-five million, one hundred forty-five thousand, twenty".