56165143 has 4 divisors (see below), whose sum is σ = 56188720. Its totient is φ = 56141568.

The previous prime is 56165119. The next prime is 56165173. The reversal of 56165143 is 34156165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34156165 = 5 ⋅6831233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56165143 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 (56165113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7755 + ... + 13132.

It is an arithmetic number, because the mean of its divisors is an integer number (14047180).

Almost surely, 2^56165143 is an apocalyptic number.

56165143 is a deficient number, since it is larger than the sum of its proper divisors (23577).

56165143 is a wasteful number, since it uses less digits than its factorization.

56165143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23576.

The product of its digits is 10800, while the sum is 31.

The square root of 56165143 is about 7494.3407315120. The cubic root of 56165143 is about 382.9619474678.

The spelling of 56165143 in words is "fifty-six million, one hundred sixty-five thousand, one hundred forty-three".