56367839 has 4 divisors (see below), whose sum is σ = 61492200. Its totient is φ = 51243480.

The previous prime is 56367811. The next prime is 56367877. The reversal of 56367839 is 93876365.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56367839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56367793 and 56367802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56367809) 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, 2562164 + ... + 2562185.

It is an arithmetic number, because the mean of its divisors is an integer number (15373050).

Almost surely, 2^56367839 is an apocalyptic number.

56367839 is a deficient number, since it is larger than the sum of its proper divisors (5124361).

56367839 is a wasteful number, since it uses less digits than its factorization.

56367839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5124360.

The product of its digits is 816480, while the sum is 47.

The square root of 56367839 is about 7507.8518232581. The cubic root of 56367839 is about 383.4220885012.

The spelling of 56367839 in words is "fifty-six million, three hundred sixty-seven thousand, eight hundred thirty-nine".