55908 has 18 divisors (see below), whose sum is σ = 141414. Its totient is φ = 18624.

The previous prime is 55903. The next prime is 55921. The reversal of 55908 is 80955.

55908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36864 + 19044 = 192^2 + 138^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (55901) by changing a digit.

55908 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 741 + ... + 812.

2⁵⁵⁹⁰⁸ is an apocalyptic number.

It is an amenable number.

55908 is an abundant number, since it is smaller than the sum of its proper divisors (85506).

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

55908 is a wasteful number, since it uses less digits than its factorization.

55908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563 (or 1558 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 55908 is about 236.4487259429. The cubic root of 55908 is about 38.2376610207.

The spelling of 55908 in words is "fifty-five thousand, nine hundred eight".