56236231 has 4 divisors (see below), whose sum is σ = 56259000. Its totient is φ = 56213464.

The previous prime is 56236199. The next prime is 56236247. The reversal of 56236231 is 13263265.

56236231 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 56236231 - 2⁵ = 56236199 is a prime.

It is a super-2 number, since 2×56236231² = 6325027354170722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56236231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56236031) 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, 7156 + ... + 12793.

It is an arithmetic number, because the mean of its divisors is an integer number (14064750).

Almost surely, 2^56236231 is an apocalyptic number.

56236231 is a deficient number, since it is larger than the sum of its proper divisors (22769).

56236231 is a wasteful number, since it uses less digits than its factorization.

56236231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22768.

The product of its digits is 6480, while the sum is 28.

The square root of 56236231 is about 7499.0820104864. The cubic root of 56236231 is about 383.1234504912.

Adding to 56236231 its reverse (13263265), we get a palindrome (69499496).

The spelling of 56236231 in words is "fifty-six million, two hundred thirty-six thousand, two hundred thirty-one".