55056655561100 has 72 divisors (see below), whose sum is σ = 119772782520048. Its totient is φ = 21967459321600.

The previous prime is 55056655561097. The next prime is 55056655561169. The reversal of 55056655561100 is 116555665055.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 65317934 + ... + 66155466.

It is an arithmetic number, because the mean of its divisors is an integer number (1663510868334).

Almost surely, 2^{55056655561100} is an apocalyptic number.

55056655561100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55056655561100 is an abundant number, since it is smaller than the sum of its proper divisors (64716126958948).

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

55056655561100 is a wasteful number, since it uses less digits than its factorization.

55056655561100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839195 (or 839188 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 55056655561100 in words is "fifty-five trillion, fifty-six billion, six hundred fifty-five million, five hundred sixty-one thousand, one hundred".