21533525424114 has 24 divisors (see below), whose sum is σ = 47338163330640. Its totient is φ = 6525310734360.

The previous prime is 21533525424101. The next prime is 21533525424149. The reversal of 21533525424114 is 41142452533512.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 14830250944 + ... + 14830252395.

It is an arithmetic number, because the mean of its divisors is an integer number (1972423472110).

Almost surely, 2^{21533525424114} is an apocalyptic number.

21533525424114 is an abundant number, since it is smaller than the sum of its proper divisors (25804637906526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21533525424114 is a wasteful number, since it uses less digits than its factorization.

21533525424114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29660503366 (or 29660503355 counting only the distinct ones).

The product of its digits is 576000, while the sum is 42.

Adding to 21533525424114 its reverse (41142452533512), we get a palindrome (62675977957626).

The spelling of 21533525424114 in words is "twenty-one trillion, five hundred thirty-three billion, five hundred twenty-five million, four hundred twenty-four thousand, one hundred fourteen".