53513233533 has 12 divisors (see below), whose sum is σ = 79385998588. Its totient is φ = 34711286400.

The previous prime is 53513233531. The next prime is 53513233561. The reversal of 53513233533 is 33533231535.

53513233533 is a `hidden beast` number, since 53 + 51 + 3 + 23 + 3 + 533 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46024408089 + 7488825444 = 214533^2 + 86538^2 .

It is not a de Polignac number, because 53513233533 - 2¹ = 53513233531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53513233531) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 80349868 + ... + 80350533.

Almost surely, 2^53513233533 is an apocalyptic number.

It is an amenable number.

53513233533 is a deficient number, since it is larger than the sum of its proper divisors (25872765055).

53513233533 is a wasteful number, since it uses less digits than its factorization.

53513233533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160700444 (or 160700441 counting only the distinct ones).

The product of its digits is 182250, while the sum is 36.

The spelling of 53513233533 in words is "fifty-three billion, five hundred thirteen million, two hundred thirty-three thousand, five hundred thirty-three".