550243967400 has 480 divisors, whose sum is σ = 2088801665280. Its totient is φ = 133643520000.

The previous prime is 550243967389. The next prime is 550243967467. The reversal of 550243967400 is 4769342055.

550243967400 is a `hidden beast` number, since 5 + 502 + 43 + 9 + 67 + 40 + 0 = 666.

It is a super-3 number, since 3×550243967400³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 8505175 + ... + 8569625.

It is an arithmetic number, because the mean of its divisors is an integer number (4351670136).

Almost surely, 2^550243967400 is an apocalyptic number.

550243967400 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 550243967400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044400832640).

550243967400 is an abundant number, since it is smaller than the sum of its proper divisors (1538557697880).

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

550243967400 is a wasteful number, since it uses less digits than its factorization.

550243967400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64527 (or 64509 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 550243967400 in words is "five hundred fifty billion, two hundred forty-three million, nine hundred sixty-seven thousand, four hundred".