550392733856 has 384 divisors, whose sum is σ = 1408264704000. Its totient is φ = 206092615680.

The previous prime is 550392733811. The next prime is 550392733879. The reversal of 550392733856 is 658337293055.

It is a super-2 number, since 2×550392733856² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1577056370 + ... + 1577056718.

It is an arithmetic number, because the mean of its divisors is an integer number (3667356000).

Almost surely, 2^550392733856 is an apocalyptic number.

550392733856 is a gapful number since it is divisible by the number (56) 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 550392733856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704132352000).

550392733856 is an abundant number, since it is smaller than the sum of its proper divisors (857871970144).

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

550392733856 is a wasteful number, since it uses less digits than its factorization.

550392733856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 772 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 56.

The spelling of 550392733856 in words is "five hundred fifty billion, three hundred ninety-two million, seven hundred thirty-three thousand, eight hundred fifty-six".