56530143 has 40 divisors (see below), whose sum is σ = 89210880. Its totient is φ = 35620560.

The previous prime is 56530141. The next prime is 56530163. The reversal of 56530143 is 34103565.

56530143 is a `hidden beast` number, since 5 + 653 + 0 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 56530143 - 2¹ = 56530141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56530141) 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 39 ways as a sum of consecutive naturals, for example, 117778 + ... + 118256.

It is an arithmetic number, because the mean of its divisors is an integer number (2230272).

Almost surely, 2^56530143 is an apocalyptic number.

56530143 is a deficient number, since it is larger than the sum of its proper divisors (32680737).

56530143 is a wasteful number, since it uses less digits than its factorization.

56530143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 56530143 is about 7518.6530043619. The cubic root of 56530143 is about 383.7897408507.

The spelling of 56530143 in words is "fifty-six million, five hundred thirty thousand, one hundred forty-three".