53135321 has 8 divisors (see below), whose sum is σ = 53961600. Its totient is φ = 52313040.

The previous prime is 53135317. The next prime is 53135323. The reversal of 53135321 is 12353135.

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 53135321 - 2² = 53135317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53135323) 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, 35690 + ... + 37148.

It is an arithmetic number, because the mean of its divisors is an integer number (6745200).

Almost surely, 2^53135321 is an apocalyptic number.

It is an amenable number.

53135321 is a deficient number, since it is larger than the sum of its proper divisors (826279).

53135321 is a wasteful number, since it uses less digits than its factorization.

53135321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999.

The product of its digits is 1350, while the sum is 23.

The square root of 53135321 is about 7289.3978489310. The cubic root of 53135321 is about 375.9479919956.

Adding to 53135321 its reverse (12353135), we get a palindrome (65488456).

The spelling of 53135321 in words is "fifty-three million, one hundred thirty-five thousand, three hundred twenty-one".