55100443224520 has 64 divisors (see below), whose sum is σ = 124131655296000. Its totient is φ = 22012507392768.

The previous prime is 55100443224511. The next prime is 55100443224529. The reversal of 55100443224520 is 2542234400155.

It is an interprime number because it is at equal distance from previous prime (55100443224511) and next prime (55100443224529).

It is a self number, because there is not a number n which added to its sum of digits gives 55100443224520.

It is not an unprimeable number, because it can be changed into a prime (55100443224529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1248883021 + ... + 1248927139.

It is an arithmetic number, because the mean of its divisors is an integer number (1939557114000).

Almost surely, 2^{55100443224520} is an apocalyptic number.

It is an amenable number.

55100443224520 is an abundant number, since it is smaller than the sum of its proper divisors (69031212071480).

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

55100443224520 is a wasteful number, since it uses less digits than its factorization.

55100443224520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82622 (or 82618 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 55100443224520 its reverse (2542234400155), we get a palindrome (57642677624675).

The spelling of 55100443224520 in words is "fifty-five trillion, one hundred billion, four hundred forty-three million, two hundred twenty-four thousand, five hundred twenty".