53056321 has 8 divisors (see below), whose sum is σ = 53916800. Its totient is φ = 52200720.

The previous prime is 53056319. The next prime is 53056351. The reversal of 53056321 is 12365035.

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 53056321 - 2¹ = 53056319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53056301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25135 + ... + 27163.

It is an arithmetic number, because the mean of its divisors is an integer number (6739600).

Almost surely, 2^53056321 is an apocalyptic number.

It is an amenable number.

53056321 is a deficient number, since it is larger than the sum of its proper divisors (860479).

53056321 is a wasteful number, since it uses less digits than its factorization.

53056321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 53056321 is about 7283.9770043569. The cubic root of 53056321 is about 375.7615835203.

The spelling of 53056321 in words is "fifty-three million, fifty-six thousand, three hundred twenty-one".