53533838385 has 40 divisors (see below), whose sum is σ = 96074423016. Its totient is φ = 28518635520.

The previous prime is 53533838353. The next prime is 53533838401. The reversal of 53533838385 is 58383833535.

It can be written as a sum of positive squares in 4 ways, for example, as 14529168369 + 39004670016 = 120537^2 + 197496^2 .

It is not a de Polignac number, because 53533838385 - 2⁵ = 53533838353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 279825 + ... + 430545.

Almost surely, 2^53533838385 is an apocalyptic number.

It is an amenable number.

53533838385 is a deficient number, since it is larger than the sum of its proper divisors (42540584631).

53533838385 is a wasteful number, since it uses less digits than its factorization.

53533838385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151615 (or 151606 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 54.

The spelling of 53533838385 in words is "fifty-three billion, five hundred thirty-three million, eight hundred thirty-eight thousand, three hundred eighty-five".