53326321 has 8 divisors (see below), whose sum is σ = 55598400. Its totient is φ = 51101232.

The previous prime is 53326319. The next prime is 53326327. The reversal of 53326321 is 12362335.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 53326321 - 2¹ = 53326319 is a prime.

It is a super-2 number, since 2×53326321² = 5687393022790082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53326327) 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, 9421 + ... + 13978.

It is an arithmetic number, because the mean of its divisors is an integer number (6949800).

Almost surely, 2^53326321 is an apocalyptic number.

It is an amenable number.

53326321 is a deficient number, since it is larger than the sum of its proper divisors (2272079).

53326321 is a wasteful number, since it uses less digits than its factorization.

53326321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23495.

The product of its digits is 3240, while the sum is 25.

The square root of 53326321 is about 7302.4873159767. The cubic root of 53326321 is about 376.3979136836.

Adding to 53326321 its reverse (12362335), we get a palindrome (65688656).

The spelling of 53326321 in words is "fifty-three million, three hundred twenty-six thousand, three hundred twenty-one".