56531323 has 8 divisors (see below), whose sum is σ = 57759200. Its totient is φ = 55313280.

The previous prime is 56531311. The next prime is 56531329. The reversal of 56531323 is 32313565.

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-56531323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56531291 and 56531300.

It is not an unprimeable number, because it can be changed into a prime (56531329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9811 + ... + 14467.

It is an arithmetic number, because the mean of its divisors is an integer number (7219900).

Almost surely, 2^56531323 is an apocalyptic number.

56531323 is a deficient number, since it is larger than the sum of its proper divisors (1227877).

56531323 is a wasteful number, since it uses less digits than its factorization.

56531323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4917.

The product of its digits is 8100, while the sum is 28.

The square root of 56531323 is about 7518.7314754552. The cubic root of 56531323 is about 383.7924112180.

Adding to 56531323 its reverse (32313565), we get a palindrome (88844888).

The spelling of 56531323 in words is "fifty-six million, five hundred thirty-one thousand, three hundred twenty-three".