53505433553 has 16 divisors (see below), whose sum is σ = 62941401600. Its totient is φ = 44841185280.

The previous prime is 53505433549. The next prime is 53505433589. The reversal of 53505433553 is 35533450535.

It is a cyclic number.

It is not a de Polignac number, because 53505433553 - 2² = 53505433549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53505433553.

It is not an unprimeable number, because it can be changed into a prime (53505432553) 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 15 ways as a sum of consecutive naturals, for example, 133313 + ... + 353246.

It is an arithmetic number, because the mean of its divisors is an integer number (3933837600).

Almost surely, 2^53505433553 is an apocalyptic number.

It is an amenable number.

53505433553 is a deficient number, since it is larger than the sum of its proper divisors (9435968047).

53505433553 is a wasteful number, since it uses less digits than its factorization.

53505433553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487352.

The product of its (nonzero) digits is 1012500, while the sum is 41.

The spelling of 53505433553 in words is "fifty-three billion, five hundred five million, four hundred thirty-three thousand, five hundred fifty-three".