54386666 has 4 divisors (see below), whose sum is σ = 81580002. Its totient is φ = 27193332.

The previous prime is 54386653. The next prime is 54386693. The reversal of 54386666 is 66668345.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 48011041 + 6375625 = 6929^2 + 2525^2 .

54386666 is a modest number, since divided by 6666 gives 5438 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 (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13596665 + ... + 13596668.

Almost surely, 2^54386666 is an apocalyptic number.

54386666 is a deficient number, since it is larger than the sum of its proper divisors (27193336).

54386666 is a wasteful number, since it uses less digits than its factorization.

54386666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27193335.

The product of its digits is 622080, while the sum is 44.

The square root of 54386666 is about 7374.7315883359. The cubic root of 54386666 is about 378.8763343185.

The spelling of 54386666 in words is "fifty-four million, three hundred eighty-six thousand, six hundred sixty-six".