56240231 has 8 divisors (see below), whose sum is σ = 59008128. Its totient is φ = 53532000.

The previous prime is 56240227. The next prime is 56240263. The reversal of 56240231 is 13204265.

56240231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56240231 - 2² = 56240227 is a prime.

It is a super-2 number, since 2×56240231² = 6325927165866722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56240197 and 56240206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56240201) 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 7 ways as a sum of consecutive naturals, for example, 12980 + ... + 16761.

It is an arithmetic number, because the mean of its divisors is an integer number (7376016).

Almost surely, 2^56240231 is an apocalyptic number.

56240231 is a deficient number, since it is larger than the sum of its proper divisors (2767897).

56240231 is a wasteful number, since it uses less digits than its factorization.

56240231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29833.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 56240231 is about 7499.3487050543. The cubic root of 56240231 is about 383.1325339442.

Adding to 56240231 its reverse (13204265), we get a palindrome (69444496).

The spelling of 56240231 in words is "fifty-six million, two hundred forty thousand, two hundred thirty-one".