53352321 has 16 divisors (see below), whose sum is σ = 78176448. Its totient is φ = 32096000.

The previous prime is 53352289. The next prime is 53352329. The reversal of 53352321 is 12325335.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53352321 - 2⁵ = 53352289 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53352291 and 53352300.

It is not an unprimeable number, because it can be changed into a prime (53352329) 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, 1380 + ... + 10421.

It is an arithmetic number, because the mean of its divisors is an integer number (4886028).

Almost surely, 2^53352321 is an apocalyptic number.

It is an amenable number.

53352321 is a deficient number, since it is larger than the sum of its proper divisors (24824127).

53352321 is a wasteful number, since it uses less digits than its factorization.

53352321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952.

The product of its digits is 2700, while the sum is 24.

The square root of 53352321 is about 7304.2673143855. The cubic root of 53352321 is about 376.4590764484.

Adding to 53352321 its reverse (12325335), we get a palindrome (65677656).

The spelling of 53352321 in words is "fifty-three million, three hundred fifty-two thousand, three hundred twenty-one".