56878 has 4 divisors (see below), whose sum is σ = 85320. Its totient is φ = 28438.

The previous prime is 56873. The next prime is 56891. The reversal of 56878 is 87865.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87865 = 5 ⋅17573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56873) by changing a digit.

56878 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 as a sum of consecutive naturals, namely, 14218 + ... + 14221.

It is an arithmetic number, because the mean of its divisors is an integer number (21330).

2⁵⁶⁸⁷⁸ is an apocalyptic number.

56878 is a deficient number, since it is larger than the sum of its proper divisors (28442).

56878 is a wasteful number, since it uses less digits than its factorization.

56878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28441.

The product of its digits is 13440, while the sum is 34.

The square root of 56878 is about 238.4910899803. The cubic root of 56878 is about 38.4575345576.

It can be divided in two parts, 568 and 78, that added together give a palindrome (646).

The spelling of 56878 in words is "fifty-six thousand, eight hundred seventy-eight".