53396321 has 4 divisors (see below), whose sum is σ = 58250544. Its totient is φ = 48542100.

The previous prime is 53396249. The next prime is 53396323. The reversal of 53396321 is 12369335.

53396321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-53396321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53396323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2427095 + ... + 2427116.

It is an arithmetic number, because the mean of its divisors is an integer number (14562636).

Almost surely, 2^53396321 is an apocalyptic number.

It is an amenable number.

53396321 is a deficient number, since it is larger than the sum of its proper divisors (4854223).

53396321 is a wasteful number, since it uses less digits than its factorization.

53396321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854222.

The product of its digits is 14580, while the sum is 32.

The square root of 53396321 is about 7307.2786316111. The cubic root of 53396321 is about 376.5625374138.

The spelling of 53396321 in words is "fifty-three million, three hundred ninety-six thousand, three hundred twenty-one".