56247143 has 4 divisors (see below), whose sum is σ = 56262720. Its totient is φ = 56231568.

The previous prime is 56247137. The next prime is 56247187. The reversal of 56247143 is 34174265.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34174265 = 5 ⋅6834853.

It is a cyclic number.

It is not a de Polignac number, because 56247143 - 2⁴ = 56247127 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 (56247193) 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, 746 + ... + 10632.

It is an arithmetic number, because the mean of its divisors is an integer number (14065680).

Almost surely, 2^56247143 is an apocalyptic number.

56247143 is a deficient number, since it is larger than the sum of its proper divisors (15577).

56247143 is an equidigital number, since it uses as much as digits as its factorization.

56247143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15576.

The product of its digits is 20160, while the sum is 32.

The square root of 56247143 is about 7499.8095309148. The cubic root of 56247143 is about 383.1482291357.

The spelling of 56247143 in words is "fifty-six million, two hundred forty-seven thousand, one hundred forty-three".