53388311 has 4 divisors (see below), whose sum is σ = 53408712. Its totient is φ = 53367912.

The previous prime is 53388301. The next prime is 53388323. The reversal of 53388311 is 11388335.

53388311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53388311 - 2¹⁸ = 53126167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53388301) 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 3 ways as a sum of consecutive naturals, for example, 5576 + ... + 11741.

It is an arithmetic number, because the mean of its divisors is an integer number (13352178).

Almost surely, 2^53388311 is an apocalyptic number.

53388311 is a deficient number, since it is larger than the sum of its proper divisors (20401).

53388311 is a wasteful number, since it uses less digits than its factorization.

53388311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20400.

The product of its digits is 8640, while the sum is 32.

The square root of 53388311 is about 7306.7305273973. The cubic root of 53388311 is about 376.5437070481.

The spelling of 53388311 in words is "fifty-three million, three hundred eighty-eight thousand, three hundred eleven".