56543239 has 4 divisors (see below), whose sum is σ = 56667424. Its totient is φ = 56419056.

The previous prime is 56543231. The next prime is 56543261. The reversal of 56543239 is 93234565.

56543239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 56543239 - 2³ = 56543231 is a prime.

It is a super-2 number, since 2×56543239² = 6394275753222242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56543198 and 56543207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56543231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61407 + ... + 62320.

It is an arithmetic number, because the mean of its divisors is an integer number (14166856).

Almost surely, 2^56543239 is an apocalyptic number.

56543239 is a deficient number, since it is larger than the sum of its proper divisors (124185).

56543239 is a wasteful number, since it uses less digits than its factorization.

56543239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124184.

The product of its digits is 97200, while the sum is 37.

The square root of 56543239 is about 7519.5238546068. The cubic root of 56543239 is about 383.8193753200.

The spelling of 56543239 in words is "fifty-six million, five hundred forty-three thousand, two hundred thirty-nine".