4535521 has 2 divisors, whose sum is σ = 4535522. Its totient is φ = 4535520.

The previous prime is 4535519. The next prime is 4535537. The reversal of 4535521 is 1255354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3651921 + 883600 = 1911^2 + 940^2 .

It is a cyclic number.

It is not a de Polignac number, because 4535521 - 2¹ = 4535519 is a prime.

It is a super-3 number, since 3×4535521³ (a number of 21 digits) contains 333 as substring.

Together with 4535519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4535501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2267760 + 2267761.

It is an arithmetic number, because the mean of its divisors is an integer number (2267761).

Almost surely, 2^4535521 is an apocalyptic number.

It is an amenable number.

4535521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4535521 is an equidigital number, since it uses as much as digits as its factorization.

4535521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3000, while the sum is 25.

The square root of 4535521 is about 2129.6762664781. The cubic root of 4535521 is about 165.5296235494.

The spelling of 4535521 in words is "four million, five hundred thirty-five thousand, five hundred twenty-one".