56353321 has 4 divisors (see below), whose sum is σ = 56448000. Its totient is φ = 56258644.

The previous prime is 56353313. The next prime is 56353333. The reversal of 56353321 is 12335365.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56353321 - 2³ = 56353313 is a prime.

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 56353321.

It is not an unprimeable number, because it can be changed into a prime (56353021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46441 + ... + 47638.

It is an arithmetic number, because the mean of its divisors is an integer number (14112000).

Almost surely, 2^56353321 is an apocalyptic number.

It is an amenable number.

56353321 is a deficient number, since it is larger than the sum of its proper divisors (94679).

56353321 is an equidigital number, since it uses as much as digits as its factorization.

56353321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94678.

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

The square root of 56353321 is about 7506.8849065375. The cubic root of 56353321 is about 383.3891678385.

Adding to 56353321 its reverse (12335365), we get a palindrome (68688686).

The spelling of 56353321 in words is "fifty-six million, three hundred fifty-three thousand, three hundred twenty-one".