53305933 has 4 divisors (see below), whose sum is σ = 53538940. Its totient is φ = 53072928.

The previous prime is 53305919. The next prime is 53305949. The reversal of 53305933 is 33950335.

It is a happy number.

53305933 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, and also an emirpimes, since its reverse is a distinct semiprime: 33950335 = 5 ⋅6790067.

It can be written as a sum of positive squares in 2 ways, for example, as 26245129 + 27060804 = 5123^2 + 5202^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53305933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53305895 and 53305904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53305913) 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, 116160 + ... + 116617.

It is an arithmetic number, because the mean of its divisors is an integer number (13384735).

Almost surely, 2^53305933 is an apocalyptic number.

It is an amenable number.

53305933 is a deficient number, since it is larger than the sum of its proper divisors (233007).

53305933 is a wasteful number, since it uses less digits than its factorization.

53305933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233006.

The product of its (nonzero) digits is 18225, while the sum is 31.

The square root of 53305933 is about 7301.0912198109. The cubic root of 53305933 is about 376.3499387579.

The spelling of 53305933 in words is "fifty-three million, three hundred five thousand, nine hundred thirty-three".