53383765 has 4 divisors (see below), whose sum is σ = 64060524. Its totient is φ = 42707008.

The previous prime is 53383739. The next prime is 53383777. The reversal of 53383765 is 56738335.

It is a happy number.

53383765 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 can be written as a sum of positive squares in 2 ways, for example, as 40373316 + 13010449 = 6354^2 + 3607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53383765 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5338372 + ... + 5338381.

It is an arithmetic number, because the mean of its divisors is an integer number (16015131).

Almost surely, 2^53383765 is an apocalyptic number.

It is an amenable number.

53383765 is a deficient number, since it is larger than the sum of its proper divisors (10676759).

53383765 is a wasteful number, since it uses less digits than its factorization.

53383765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10676758.

The product of its digits is 226800, while the sum is 40.

The square root of 53383765 is about 7306.4194377273. The cubic root of 53383765 is about 376.5330192137.

The spelling of 53383765 in words is "fifty-three million, three hundred eighty-three thousand, seven hundred sixty-five".