4521533 has 2 divisors, whose sum is σ = 4521534. Its totient is φ = 4521532.

The previous prime is 4521527. The next prime is 4521551. The reversal of 4521533 is 3351254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2951524 + 1570009 = 1718^2 + 1253^2 .

It is a cyclic number.

It is not a de Polignac number, because 4521533 - 2¹² = 4517437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4521499 and 4521508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4521523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260766 + 2260767.

It is an arithmetic number, because the mean of its divisors is an integer number (2260767).

Almost surely, 2^4521533 is an apocalyptic number.

It is an amenable number.

4521533 is a deficient number, since it is larger than the sum of its proper divisors (1).

4521533 is an equidigital number, since it uses as much as digits as its factorization.

4521533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 23.

The square root of 4521533 is about 2126.3896632555. The cubic root of 4521533 is about 165.3592783418.

Adding to 4521533 its reverse (3351254), we get a palindrome (7872787).

The spelling of 4521533 in words is "four million, five hundred twenty-one thousand, five hundred thirty-three".