56858 has 4 divisors (see below), whose sum is σ = 85290. Its totient is φ = 28428.

The previous prime is 56857. The next prime is 56873. The reversal of 56858 is 85865.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51529 + 5329 = 227^2 + 73^2 .

It is a d-powerful number, because it can be written as 5⁴ + 6⁵ + 8² + 5⁶ + 8⁵ .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14213 + ... + 14216.

2⁵⁶⁸⁵⁸ is an apocalyptic number.

56858 is a deficient number, since it is larger than the sum of its proper divisors (28432).

56858 is a wasteful number, since it uses less digits than its factorization.

56858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28431.

The product of its digits is 9600, while the sum is 32.

The square root of 56858 is about 238.4491560061. The cubic root of 56858 is about 38.4530264240.

It can be divided in two parts, 568 and 58, that added together give a palindrome (626).

The spelling of 56858 in words is "fifty-six thousand, eight hundred fifty-eight".