56306231 has 12 divisors (see below), whose sum is σ = 59312568. Its totient is φ = 53445744.

The previous prime is 56306213. The next prime is 56306251. The reversal of 56306231 is 13260365.

It is not a de Polignac number, because 56306231 - 2⁶ = 56306167 is a prime.

It is a super-2 number, since 2×56306231² = 6340783298850722, 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 56306231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56306251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85901 + ... + 86553.

It is an arithmetic number, because the mean of its divisors is an integer number (4942714).

Almost surely, 2^56306231 is an apocalyptic number.

56306231 is a deficient number, since it is larger than the sum of its proper divisors (3006337).

56306231 is a wasteful number, since it uses less digits than its factorization.

56306231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862 (or 839 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 56306231 is about 7503.7477969345. The cubic root of 56306231 is about 383.2823487747.

Adding to 56306231 its reverse (13260365), we get a palindrome (69566596).

The spelling of 56306231 in words is "fifty-six million, three hundred six thousand, two hundred thirty-one".