54157686 has 32 divisors (see below), whose sum is σ = 123303168. Its totient is φ = 15697440.

The previous prime is 54157681. The next prime is 54157711. The reversal of 54157686 is 68675145.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54157681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16321 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (3853224).

Almost surely, 2^54157686 is an apocalyptic number.

54157686 is an abundant number, since it is smaller than the sum of its proper divisors (69145482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54157686 is a wasteful number, since it uses less digits than its factorization.

54157686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35716.

The product of its digits is 201600, while the sum is 42.

The square root of 54157686 is about 7359.1905804919. The cubic root of 54157686 is about 378.3438683804.

The spelling of 54157686 in words is "fifty-four million, one hundred fifty-seven thousand, six hundred eighty-six".