534233415521 has 4 divisors (see below), whose sum is σ = 575328293652. Its totient is φ = 493138537392.

The previous prime is 534233415503. The next prime is 534233415539. The reversal of 534233415521 is 125514332435.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (534233415503) and next prime (534233415539).

It can be written as a sum of positive squares in 2 ways, for example, as 208465296400 + 325768119121 = 456580^2 + 570761^2 .

It is a cyclic number.

It is not a de Polignac number, because 534233415521 - 2¹⁰ = 534233414497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (534233411521) 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 3 ways as a sum of consecutive naturals, for example, 20547439046 + ... + 20547439071.

It is an arithmetic number, because the mean of its divisors is an integer number (143832073413).

Almost surely, 2^534233415521 is an apocalyptic number.

It is an amenable number.

534233415521 is a deficient number, since it is larger than the sum of its proper divisors (41094878131).

534233415521 is a wasteful number, since it uses less digits than its factorization.

534233415521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41094878130.

The product of its digits is 216000, while the sum is 38.

Adding to 534233415521 its reverse (125514332435), we get a palindrome (659747747956).

The spelling of 534233415521 in words is "five hundred thirty-four billion, two hundred thirty-three million, four hundred fifteen thousand, five hundred twenty-one".