56071 has 4 divisors (see below), whose sum is σ = 57312. Its totient is φ = 54832.

The previous prime is 56053. The next prime is 56081. The reversal of 56071 is 17065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17065 = 5 ⋅3413.

It is a cyclic number.

It is not a de Polignac number, because 56071 - 2⁵ = 56039 is a prime.

It is a Duffinian number.

56071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56041) 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, 550 + ... + 643.

It is an arithmetic number, because the mean of its divisors is an integer number (14328).

2⁵⁶⁰⁷¹ is an apocalyptic number.

56071 is a deficient number, since it is larger than the sum of its proper divisors (1241).

56071 is a wasteful number, since it uses less digits than its factorization.

56071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 56071 is about 236.7931586850. The cubic root of 56071 is about 38.2747856501.

The spelling of 56071 in words is "fifty-six thousand, seventy-one".