535343452001521 has 2 divisors, whose sum is σ = 535343452001522. Its totient is φ = 535343452001520.

The previous prime is 535343452001497. The next prime is 535343452001681. The reversal of 535343452001521 is 125100254343535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397216060878400 + 138127391123121 = 19930280^2 + 11752761^2 .

It is a cyclic number.

It is not a de Polignac number, because 535343452001521 - 2³⁹ = 534793696187633 is a prime.

It is a super-2 number, since 2×535343452001521² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (535343452001021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267671726000760 + 267671726000761.

It is an arithmetic number, because the mean of its divisors is an integer number (267671726000761).

Almost surely, 2^{535343452001521} is an apocalyptic number.

It is an amenable number.

535343452001521 is a deficient number, since it is larger than the sum of its proper divisors (1).

535343452001521 is an equidigital number, since it uses as much as digits as its factorization.

535343452001521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080000, while the sum is 43.

The spelling of 535343452001521 in words is "five hundred thirty-five trillion, three hundred forty-three billion, four hundred fifty-two million, one thousand, five hundred twenty-one".