54081686 has 8 divisors (see below), whose sum is σ = 81289224. Its totient is φ = 26985280.

The previous prime is 54081673. The next prime is 54081691. The reversal of 54081686 is 68618045.

54081686 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 Curzon number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 26555 + ... + 28518.

It is an arithmetic number, because the mean of its divisors is an integer number (10161153).

Almost surely, 2^54081686 is an apocalyptic number.

54081686 is a deficient number, since it is larger than the sum of its proper divisors (27207538).

54081686 is a wasteful number, since it uses less digits than its factorization.

54081686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55566.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 54081686 is about 7354.0251563345. The cubic root of 54081686 is about 378.1668076716.

The spelling of 54081686 in words is "fifty-four million, eighty-one thousand, six hundred eighty-six".