55684705 has 16 divisors (see below), whose sum is σ = 68465664. Its totient is φ = 43464960.

The previous prime is 55684697. The next prime is 55684709. The reversal of 55684705 is 50748655.

55684705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55684705 - 2³ = 55684697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55684709) 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, 37120 + ... + 38590.

It is an arithmetic number, because the mean of its divisors is an integer number (4279104).

Almost surely, 2^55684705 is an apocalyptic number.

It is an amenable number.

55684705 is a deficient number, since it is larger than the sum of its proper divisors (12780959).

55684705 is a wasteful number, since it uses less digits than its factorization.

55684705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 55684705 is about 7462.2185039035. The cubic root of 55684705 is about 381.8668637766.

The spelling of 55684705 in words is "fifty-five million, six hundred eighty-four thousand, seven hundred five".