55550857530828 has 24 divisors (see below), whose sum is σ = 141402182806080. Its totient is φ = 16833593191120.

The previous prime is 55550857530827. The next prime is 55550857530871. The reversal of 55550857530828 is 82803575805555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (55550857530827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210419914758 + ... + 210419915021.

It is an arithmetic number, because the mean of its divisors is an integer number (5891757616920).

Almost surely, 2^{55550857530828} is an apocalyptic number.

It is an amenable number.

55550857530828 is an abundant number, since it is smaller than the sum of its proper divisors (85851325275252).

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

55550857530828 is a wasteful number, since it uses less digits than its factorization.

55550857530828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420839829797 (or 420839829795 counting only the distinct ones).

The product of its (nonzero) digits is 336000000, while the sum is 66.

The spelling of 55550857530828 in words is "fifty-five trillion, five hundred fifty billion, eight hundred fifty-seven million, five hundred thirty thousand, eight hundred twenty-eight".