53366215533 has 32 divisors (see below), whose sum is σ = 77208671232. Its totient is φ = 32655052800.

The previous prime is 53366215501. The next prime is 53366215537. The reversal of 53366215533 is 33551266335.

It is a happy number.

It is not a de Polignac number, because 53366215533 - 2⁵ = 53366215501 is a prime.

It is a super-2 number, since 2×53366215533² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53366215537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10500553 + ... + 10505633.

It is an arithmetic number, because the mean of its divisors is an integer number (2412770976).

Almost surely, 2^53366215533 is an apocalyptic number.

It is an amenable number.

53366215533 is a deficient number, since it is larger than the sum of its proper divisors (23842455699).

53366215533 is a wasteful number, since it uses less digits than its factorization.

53366215533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10165.

The product of its digits is 729000, while the sum is 42.

The spelling of 53366215533 in words is "fifty-three billion, three hundred sixty-six million, two hundred fifteen thousand, five hundred thirty-three".