550785312000 has 2304 divisors, whose sum is σ = 2688865320960. Its totient is φ = 107495424000.

The previous prime is 550785311953. The next prime is 550785312023. The reversal of 550785312000 is 213587055.

550785312000 is a `hidden beast` number, since 5 + 50 + 78 + 531 + 2 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1130975757 + ... + 1130976243.

It is an arithmetic number, because the mean of its divisors is an integer number (1167042240).

Almost surely, 2^550785312000 is an apocalyptic number.

550785312000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 550785312000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1344432660480).

550785312000 is an abundant number, since it is smaller than the sum of its proper divisors (2138080008960).

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

550785312000 is a wasteful number, since it uses less digits than its factorization.

550785312000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562 (or 532 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

Adding to 550785312000 its reverse (213587055), we get a palindrome (550998899055).

The spelling of 550785312000 in words is "five hundred fifty billion, seven hundred eighty-five million, three hundred twelve thousand".