550421913600 has 2016 divisors, whose sum is σ = 2379283430400. Its totient is φ = 124216934400.

The previous prime is 550421913589. The next prime is 550421913611. The reversal of 550421913600 is 6319124055.

550421913600 is a `hidden beast` number, since 5 + 5 + 0 + 42 + 1 + 9 + 1 + 3 + 600 = 666.

It is an interprime number because it is at equal distance from previous prime (550421913589) and next prime (550421913611).

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

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 17755545585 + ... + 17755545615.

Almost surely, 2^550421913600 is an apocalyptic number.

550421913600 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 550421913600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1189641715200).

550421913600 is an abundant number, since it is smaller than the sum of its proper divisors (1828861516800).

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

550421913600 is a wasteful number, since it uses less digits than its factorization.

550421913600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 550421913600 in words is "five hundred fifty billion, four hundred twenty-one million, nine hundred thirteen thousand, six hundred".