53235009 has 8 divisors (see below), whose sum is σ = 78866720. Its totient is φ = 35489988.

The previous prime is 53235001. The next prime is 53235011. The reversal of 53235009 is 90053235.

It is not a de Polignac number, because 53235009 - 2³ = 53235001 is a prime.

It is a super-3 number, since 3×53235009³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1971667 = 53235009 / (5 + 3 + 2 + 3 + 5 + 0 + 0 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53235001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 985807 + ... + 985860.

It is an arithmetic number, because the mean of its divisors is an integer number (9858340).

Almost surely, 2^53235009 is an apocalyptic number.

It is an amenable number.

53235009 is a deficient number, since it is larger than the sum of its proper divisors (25631711).

53235009 is a wasteful number, since it uses less digits than its factorization.

53235009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971676 (or 1971670 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 53235009 is about 7296.2325209659. The cubic root of 53235009 is about 376.1829524057.

The spelling of 53235009 in words is "fifty-three million, two hundred thirty-five thousand, nine".