550121451432 has 256 divisors, whose sum is σ = 1681964974080. Its totient is φ = 146607667200.

The previous prime is 550121451391. The next prime is 550121451449. The reversal of 550121451432 is 234154121055.

It is a super-2 number, since 2×550121451432² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550121451393 and 550121451402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20605132 + ... + 20631812.

It is an arithmetic number, because the mean of its divisors is an integer number (6570175680).

Almost surely, 2^550121451432 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 550121451432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (840982487040).

550121451432 is an abundant number, since it is smaller than the sum of its proper divisors (1131843522648).

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

550121451432 is a wasteful number, since it uses less digits than its factorization.

550121451432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26872 (or 26868 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 550121451432 its reverse (234154121055), we get a palindrome (784275572487).

The spelling of 550121451432 in words is "five hundred fifty billion, one hundred twenty-one million, four hundred fifty-one thousand, four hundred thirty-two".