53550321 has 16 divisors (see below), whose sum is σ = 78770880. Its totient is φ = 32088320.

The previous prime is 53550293. The next prime is 53550331. The reversal of 53550321 is 12305535.

53550321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53550321 - 2¹⁰ = 53549297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53550291 and 53550300.

It is not an unprimeable number, because it can be changed into a prime (53550331) 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 15 ways as a sum of consecutive naturals, for example, 6180 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (4923180).

Almost surely, 2^53550321 is an apocalyptic number.

It is an amenable number.

53550321 is a deficient number, since it is larger than the sum of its proper divisors (25220559).

53550321 is a wasteful number, since it uses less digits than its factorization.

53550321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18336.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 53550321 is about 7317.8084834191. The cubic root of 53550321 is about 376.9242038401.

Adding to 53550321 its reverse (12305535), we get a palindrome (65855856).

The spelling of 53550321 in words is "fifty-three million, five hundred fifty thousand, three hundred twenty-one".