56047 has 4 divisors (see below), whose sum is σ = 57456. Its totient is φ = 54640.

The previous prime is 56041. The next prime is 56053. The reversal of 56047 is 74065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74065 = 5 ⋅14813.

It is an interprime number because it is at equal distance from previous prime (56041) and next prime (56053).

It is a cyclic number.

It is not a de Polignac number, because 56047 - 2³ = 56039 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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, 643 + ... + 724.

It is an arithmetic number, because the mean of its divisors is an integer number (14364).

2⁵⁶⁰⁴⁷ is an apocalyptic number.

56047 is a deficient number, since it is larger than the sum of its proper divisors (1409).

56047 is a wasteful number, since it uses less digits than its factorization.

56047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 56047 is about 236.7424761212. The cubic root of 56047 is about 38.2693239679.

The spelling of 56047 in words is "fifty-six thousand, forty-seven".