53888666 has 16 divisors (see below), whose sum is σ = 87544800. Its totient is φ = 24730608.

The previous prime is 53888629. The next prime is 53888707. The reversal of 53888666 is 66688835.

53888666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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, 1136 + ... + 10443.

It is an arithmetic number, because the mean of its divisors is an integer number (5471550).

Almost surely, 2^53888666 is an apocalyptic number.

53888666 is a deficient number, since it is larger than the sum of its proper divisors (33656134).

53888666 is a wasteful number, since it uses less digits than its factorization.

53888666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11773.

The product of its digits is 1658880, while the sum is 50.

The square root of 53888666 is about 7340.8900005381. The cubic root of 53888666 is about 377.7163731865.

The spelling of 53888666 in words is "fifty-three million, eight hundred eighty-eight thousand, six hundred sixty-six".