56247 has 4 divisors (see below), whose sum is σ = 75000. Its totient is φ = 37496.

The previous prime is 56239. The next prime is 56249. The reversal of 56247 is 74265.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56247 - 2³ = 56239 is a prime.

It is an Ulam number.

It is a D-number.

It is a plaindrome in base 6 and base 8.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56249) 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, 9372 + ... + 9377.

It is an arithmetic number, because the mean of its divisors is an integer number (18750).

2⁵⁶²⁴⁷ is an apocalyptic number.

56247 is a deficient number, since it is larger than the sum of its proper divisors (18753).

56247 is a wasteful number, since it uses less digits than its factorization.

56247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18752.

The product of its digits is 1680, while the sum is 24.

The square root of 56247 is about 237.1644998730. The cubic root of 56247 is about 38.3147904436.

It can be divided in two parts, 56 and 247, that added together give a palindrome (303).

The spelling of 56247 in words is "fifty-six thousand, two hundred forty-seven".