53233509 has 16 divisors (see below), whose sum is σ = 81839232. Its totient is φ = 30148608.

The previous prime is 53233507. The next prime is 53233549. The reversal of 53233509 is 90533235.

53233509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53233509 - 2¹ = 53233507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53233501) 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 15 ways as a sum of consecutive naturals, for example, 8844 + ... + 13589.

It is an arithmetic number, because the mean of its divisors is an integer number (5114952).

Almost surely, 2^53233509 is an apocalyptic number.

It is an amenable number.

53233509 is a deficient number, since it is larger than the sum of its proper divisors (28605723).

53233509 is a wasteful number, since it uses less digits than its factorization.

53233509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22556.

The product of its (nonzero) digits is 12150, while the sum is 30.

The square root of 53233509 is about 7296.1297274651. The cubic root of 53233509 is about 376.1794191436.

The spelling of 53233509 in words is "fifty-three million, two hundred thirty-three thousand, five hundred nine".