55085766 has 16 divisors (see below), whose sum is σ = 111183600. Its totient is φ = 18193248.

The previous prime is 55085743. The next prime is 55085773. The reversal of 55085766 is 66758055.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41461 + ... + 42768.

It is an arithmetic number, because the mean of its divisors is an integer number (6948975).

Almost surely, 2^55085766 is an apocalyptic number.

55085766 is an abundant number, since it is smaller than the sum of its proper divisors (56097834).

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

55085766 is a wasteful number, since it uses less digits than its factorization.

55085766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84343.

The product of its (nonzero) digits is 252000, while the sum is 42.

The square root of 55085766 is about 7421.9785771720. The cubic root of 55085766 is about 380.4928185788.

The spelling of 55085766 in words is "fifty-five million, eighty-five thousand, seven hundred sixty-six".