56388166 has 8 divisors (see below), whose sum is σ = 85025664. Its totient is φ = 28046280.

The previous prime is 56388121. The next prime is 56388169. The reversal of 56388166 is 66188365.

56388166 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (56388169) 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 3 ways as a sum of consecutive naturals, for example, 73425 + ... + 74188.

It is an arithmetic number, because the mean of its divisors is an integer number (10628208).

Almost surely, 2^56388166 is an apocalyptic number.

56388166 is a deficient number, since it is larger than the sum of its proper divisors (28637498).

56388166 is a wasteful number, since it uses less digits than its factorization.

56388166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147806.

The product of its digits is 207360, while the sum is 43.

The square root of 56388166 is about 7509.2054173528. The cubic root of 56388166 is about 383.4681720142.

The spelling of 56388166 in words is "fifty-six million, three hundred eighty-eight thousand, one hundred sixty-six".