56303231 has 8 divisors (see below), whose sum is σ = 56764224. Its totient is φ = 55844640.

The previous prime is 56303189. The next prime is 56303243. The reversal of 56303231 is 13230365.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56303231 is a prime.

It is a super-2 number, since 2×56303231² = 6340107642078722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56303197 and 56303206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56303281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100805 + ... + 101361.

It is an arithmetic number, because the mean of its divisors is an integer number (7095528).

Almost surely, 2^56303231 is an apocalyptic number.

56303231 is a deficient number, since it is larger than the sum of its proper divisors (460993).

56303231 is a wasteful number, since it uses less digits than its factorization.

56303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 56303231 is about 7503.5478941631. The cubic root of 56303231 is about 383.2755415502.

Adding to 56303231 its reverse (13230365), we get a palindrome (69533596).

The spelling of 56303231 in words is "fifty-six million, three hundred three thousand, two hundred thirty-one".