54057686 has 4 divisors (see below), whose sum is σ = 81086532. Its totient is φ = 27028842.

The previous prime is 54057667. The next prime is 54057697. The reversal of 54057686 is 68675045.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13514420 + ... + 13514423.

It is an arithmetic number, because the mean of its divisors is an integer number (20271633).

Almost surely, 2^54057686 is an apocalyptic number.

54057686 is a deficient number, since it is larger than the sum of its proper divisors (27028846).

54057686 is a wasteful number, since it uses less digits than its factorization.

54057686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27028845.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 54057686 is about 7352.3932158176. The cubic root of 54057686 is about 378.1108593032.

The spelling of 54057686 in words is "fifty-four million, fifty-seven thousand, six hundred eighty-six".