55858 has 8 divisors (see below), whose sum is σ = 91440. Its totient is φ = 25380.

The previous prime is 55849. The next prime is 55871. The reversal of 55858 is 85855.

It is a happy number.

55858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248 + ... + 1291.

It is an arithmetic number, because the mean of its divisors is an integer number (11430).

2⁵⁵⁸⁵⁸ is an apocalyptic number.

55858 is a deficient number, since it is larger than the sum of its proper divisors (35582).

55858 is a wasteful number, since it uses less digits than its factorization.

55858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552.

The product of its digits is 8000, while the sum is 31.

The square root of 55858 is about 236.3429711246. The cubic root of 55858 is about 38.2262586377.

It can be divided in two parts, 558 and 58, that added together give a palindrome (616).

The spelling of 55858 in words is "fifty-five thousand, eight hundred fifty-eight".