56678558 has 16 divisors (see below), whose sum is σ = 91576320. Its totient is φ = 26222616.

The previous prime is 56678551. The next prime is 56678579. The reversal of 56678558 is 85587665.

56678558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56678551) 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 7 ways as a sum of consecutive naturals, for example, 15710 + ... + 18977.

It is an arithmetic number, because the mean of its divisors is an integer number (5723520).

Almost surely, 2^56678558 is an apocalyptic number.

56678558 is a deficient number, since it is larger than the sum of its proper divisors (34897762).

56678558 is a wasteful number, since it uses less digits than its factorization.

56678558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34751.

The product of its digits is 2016000, while the sum is 50.

The square root of 56678558 is about 7528.5163212947. The cubic root of 56678558 is about 384.1253162680.

The spelling of 56678558 in words is "fifty-six million, six hundred seventy-eight thousand, five hundred fifty-eight".