54566666 has 16 divisors (see below), whose sum is σ = 102047040. Its totient is φ = 21259680.

The previous prime is 54566653. The next prime is 54566711. The reversal of 54566666 is 66666545.

54566666 is a modest number, since divided by 6666 gives 5456 as remainder.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177011 + ... + 177318.

It is an arithmetic number, because the mean of its divisors is an integer number (6377940).

Almost surely, 2^54566666 is an apocalyptic number.

54566666 is a deficient number, since it is larger than the sum of its proper divisors (47480374).

54566666 is a wasteful number, since it uses less digits than its factorization.

54566666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354349.

The product of its digits is 777600, while the sum is 44.

The square root of 54566666 is about 7386.9253414394. The cubic root of 54566666 is about 379.2938548045.

The spelling of 54566666 in words is "fifty-four million, five hundred sixty-six thousand, six hundred sixty-six".