56147171 has 2 divisors, whose sum is σ = 56147172. Its totient is φ = 56147170.

The previous prime is 56147159. The next prime is 56147191. The reversal of 56147171 is 17174165.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56147171 - 2¹⁰ = 56146147 is a prime.

It is a super-2 number, since 2×56147171² = 6305009622606482, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56147131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28073585 + 28073586.

It is an arithmetic number, because the mean of its divisors is an integer number (28073586).

Almost surely, 2^56147171 is an apocalyptic number.

56147171 is a deficient number, since it is larger than the sum of its proper divisors (1).

56147171 is an equidigital number, since it uses as much as digits as its factorization.

56147171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5880, while the sum is 32.

The square root of 56147171 is about 7493.1415974877. The cubic root of 56147171 is about 382.9210957580.

The spelling of 56147171 in words is "fifty-six million, one hundred forty-seven thousand, one hundred seventy-one".