57642167 has 4 divisors (see below), whose sum is σ = 62882376. Its totient is φ = 52401960.

The previous prime is 57642161. The next prime is 57642191. The reversal of 57642167 is 76124675.

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

It is a cyclic number.

It is not a de Polignac number, because 57642167 - 2⁸ = 57641911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57642167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57642161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2620088 + ... + 2620109.

It is an arithmetic number, because the mean of its divisors is an integer number (15720594).

Almost surely, 2^57642167 is an apocalyptic number.

57642167 is a deficient number, since it is larger than the sum of its proper divisors (5240209).

57642167 is a wasteful number, since it uses less digits than its factorization.

57642167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240208.

The product of its digits is 70560, while the sum is 38.

The square root of 57642167 is about 7592.2438712149. The cubic root of 57642167 is about 386.2899711116.

The spelling of 57642167 in words is "fifty-seven million, six hundred forty-two thousand, one hundred sixty-seven".