54138866 has 8 divisors (see below), whose sum is σ = 85482480. Its totient is φ = 25644708.

The previous prime is 54138859. The next prime is 54138871. The reversal of 54138866 is 66883145.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712316 + ... + 712391.

It is an arithmetic number, because the mean of its divisors is an integer number (10685310).

Almost surely, 2^54138866 is an apocalyptic number.

54138866 is a deficient number, since it is larger than the sum of its proper divisors (31343614).

54138866 is a wasteful number, since it uses less digits than its factorization.

54138866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424728.

The product of its digits is 138240, while the sum is 41.

The square root of 54138866 is about 7357.9117961552. The cubic root of 54138866 is about 378.3000379962.

The spelling of 54138866 in words is "fifty-four million, one hundred thirty-eight thousand, eight hundred sixty-six".