56313321 has 16 divisors (see below), whose sum is σ = 79338240. Its totient is φ = 35430480.

The previous prime is 56313319. The next prime is 56313343. The reversal of 56313321 is 12331365.

It is a happy number.

It is not a de Polignac number, because 56313321 - 2¹ = 56313319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56313291 and 56313300.

It is not an unprimeable number, because it can be changed into a prime (56313311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14386 + ... + 17876.

It is an arithmetic number, because the mean of its divisors is an integer number (4958640).

Almost surely, 2^56313321 is an apocalyptic number.

It is an amenable number.

56313321 is a deficient number, since it is larger than the sum of its proper divisors (23024919).

56313321 is a wasteful number, since it uses less digits than its factorization.

56313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3796.

The product of its digits is 1620, while the sum is 24.

The square root of 56313321 is about 7504.2202126537. The cubic root of 56313321 is about 383.2984355544.

Adding to 56313321 its reverse (12331365), we get a palindrome (68644686).

The spelling of 56313321 in words is "fifty-six million, three hundred thirteen thousand, three hundred twenty-one".