53036321 has 8 divisors (see below), whose sum is σ = 59599680. Its totient is φ = 46827792.

The previous prime is 53036299. The next prime is 53036363. The reversal of 53036321 is 12363035.

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 53036321 - 2¹⁸ = 52774177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53032321) 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, 88391 + ... + 88988.

It is an arithmetic number, because the mean of its divisors is an integer number (7449960).

Almost surely, 2^53036321 is an apocalyptic number.

It is an amenable number.

53036321 is a deficient number, since it is larger than the sum of its proper divisors (6563359).

53036321 is a wasteful number, since it uses less digits than its factorization.

53036321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177415.

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

The square root of 53036321 is about 7282.6039985708. The cubic root of 53036321 is about 375.7143621523.

Adding to 53036321 its reverse (12363035), we get a palindrome (65399356).

The spelling of 53036321 in words is "fifty-three million, thirty-six thousand, three hundred twenty-one".