5551133550450 has 96 divisors (see below), whose sum is σ = 13826715033600. Its totient is φ = 1473873913920.

The previous prime is 5551133550449. The next prime is 5551133550461. The reversal of 5551133550450 is 540553311555.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34545391 + ... + 34705709.

It is an arithmetic number, because the mean of its divisors is an integer number (144028281600).

Almost surely, 2^{5551133550450} is an apocalyptic number.

5551133550450 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 5551133550450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6913357516800).

5551133550450 is an abundant number, since it is smaller than the sum of its proper divisors (8275581483150).

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

5551133550450 is a wasteful number, since it uses less digits than its factorization.

5551133550450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161336 (or 161331 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 42.

The spelling of 5551133550450 in words is "five trillion, five hundred fifty-one billion, one hundred thirty-three million, five hundred fifty thousand, four hundred fifty".