53338387 has 4 divisors (see below), whose sum is σ = 53827840. Its totient is φ = 52848936.

The previous prime is 53338379. The next prime is 53338393. The reversal of 53338387 is 78383335.

53338387 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 53338387 - 2³ = 53338379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53338687) 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, 244563 + ... + 244780.

It is an arithmetic number, because the mean of its divisors is an integer number (13456960).

Almost surely, 2^53338387 is an apocalyptic number.

53338387 is a deficient number, since it is larger than the sum of its proper divisors (489453).

53338387 is a wasteful number, since it uses less digits than its factorization.

53338387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489452.

The product of its digits is 181440, while the sum is 40.

The square root of 53338387 is about 7303.3134261101. The cubic root of 53338387 is about 376.4263003829.

The spelling of 53338387 in words is "fifty-three million, three hundred thirty-eight thousand, three hundred eighty-seven".