56547143 has 4 divisors (see below), whose sum is σ = 56622600. Its totient is φ = 56471688.

The previous prime is 56547119. The next prime is 56547149. The reversal of 56547143 is 34174565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34174565 = 5 ⋅6834913.

It is a cyclic number.

It is not a de Polignac number, because 56547143 - 2¹⁸ = 56284999 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 (56547149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36593 + ... + 38106.

It is an arithmetic number, because the mean of its divisors is an integer number (14155650).

Almost surely, 2^56547143 is an apocalyptic number.

56547143 is a deficient number, since it is larger than the sum of its proper divisors (75457).

56547143 is an equidigital number, since it uses as much as digits as its factorization.

56547143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75456.

The product of its digits is 50400, while the sum is 35.

The square root of 56547143 is about 7519.7834410307. The cubic root of 56547143 is about 383.8282086565.

The spelling of 56547143 in words is "fifty-six million, five hundred forty-seven thousand, one hundred forty-three".