20057167 has 8 divisors (see below), whose sum is σ = 21651840. Its totient is φ = 18469920.

The previous prime is 20057143. The next prime is 20057171. The reversal of 20057167 is 76175002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20057167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20057117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4617 + ... + 7837.

It is an arithmetic number, because the mean of its divisors is an integer number (2706480).

Almost surely, 2^20057167 is an apocalyptic number.

20057167 is a deficient number, since it is larger than the sum of its proper divisors (1594673).

20057167 is a wasteful number, since it uses less digits than its factorization.

20057167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3713.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 20057167 is about 4478.5228591579. The cubic root of 20057167 is about 271.7001408228.

The spelling of 20057167 in words is "twenty million, fifty-seven thousand, one hundred sixty-seven".