55108782 has 32 divisors (see below), whose sum is σ = 127791360. Its totient is φ = 17570520.

The previous prime is 55108777. The next prime is 55108783. The reversal of 55108782 is 28780155.

55108782 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55108783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20944 + ... + 23427.

It is an arithmetic number, because the mean of its divisors is an integer number (3993480).

Almost surely, 2^55108782 is an apocalyptic number.

55108782 is an abundant number, since it is smaller than the sum of its proper divisors (72682578).

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

55108782 is a wasteful number, since it uses less digits than its factorization.

55108782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44405 (or 44399 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 55108782 is about 7423.5289451850. The cubic root of 55108782 is about 380.5458038534.

The spelling of 55108782 in words is "fifty-five million, one hundred eight thousand, seven hundred eighty-two".