56310143 has 4 divisors (see below), whose sum is σ = 56655768. Its totient is φ = 55964520.

The previous prime is 56310139. The next prime is 56310251. The reversal of 56310143 is 34101365.

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 56310143 - 2² = 56310139 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 (56310113) 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, 172568 + ... + 172893.

It is an arithmetic number, because the mean of its divisors is an integer number (14163942).

Almost surely, 2^56310143 is an apocalyptic number.

56310143 is a deficient number, since it is larger than the sum of its proper divisors (345625).

56310143 is a wasteful number, since it uses less digits than its factorization.

56310143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345624.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 56310143 is about 7504.0084621487. The cubic root of 56310143 is about 383.2912250323.

The spelling of 56310143 in words is "fifty-six million, three hundred ten thousand, one hundred forty-three".