535523621 has 2 divisors, whose sum is σ = 535523622. Its totient is φ = 535523620.

The previous prime is 535523609. The next prime is 535523627. The reversal of 535523621 is 126325535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285441025 + 250082596 = 16895^2 + 15814^2 .

It is a cyclic number.

It is not a de Polignac number, because 535523621 - 2⁶ = 535523557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (535523627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267761810 + 267761811.

It is an arithmetic number, because the mean of its divisors is an integer number (267761811).

Almost surely, 2^535523621 is an apocalyptic number.

It is an amenable number.

535523621 is a deficient number, since it is larger than the sum of its proper divisors (1).

535523621 is an equidigital number, since it uses as much as digits as its factorization.

535523621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27000, while the sum is 32.

The square root of 535523621 is about 23141.3832991894. The cubic root of 535523621 is about 812.0688974882.

The spelling of 535523621 in words is "five hundred thirty-five million, five hundred twenty-three thousand, six hundred twenty-one".