56259839 has 4 divisors (see below), whose sum is σ = 56275224. Its totient is φ = 56244456.

The previous prime is 56259829. The next prime is 56259901. The reversal of 56259839 is 93895265.

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.

It is a cyclic number.

It is not a de Polignac number, because 56259839 - 2²⁰ = 55211263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56259793 and 56259802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56259829) 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, 1289 + ... + 10685.

It is an arithmetic number, because the mean of its divisors is an integer number (14068806).

Almost surely, 2^56259839 is an apocalyptic number.

56259839 is a deficient number, since it is larger than the sum of its proper divisors (15385).

56259839 is an equidigital number, since it uses as much as digits as its factorization.

56259839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15384.

The product of its digits is 583200, while the sum is 47.

The square root of 56259839 is about 7500.6559046526. The cubic root of 56259839 is about 383.1770548011.

The spelling of 56259839 in words is "fifty-six million, two hundred fifty-nine thousand, eight hundred thirty-nine".