53063321 has 4 divisors (see below), whose sum is σ = 53098752. Its totient is φ = 53027892.

The previous prime is 53063317. The next prime is 53063327. The reversal of 53063321 is 12336035.

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 not a de Polignac number, because 53063321 - 2² = 53063317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53063327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15365 + ... + 18498.

It is an arithmetic number, because the mean of its divisors is an integer number (13274688).

Almost surely, 2^53063321 is an apocalyptic number.

It is an amenable number.

53063321 is a deficient number, since it is larger than the sum of its proper divisors (35431).

53063321 is a wasteful number, since it uses less digits than its factorization.

53063321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35430.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 53063321 is about 7284.4574952429. The cubic root of 53063321 is about 375.7781081955.

Adding to 53063321 its reverse (12336035), we get a palindrome (65399356).

The spelling of 53063321 in words is "fifty-three million, sixty-three thousand, three hundred twenty-one".