4524521 has 2 divisors, whose sum is σ = 4524522. Its totient is φ = 4524520.

The previous prime is 4524479. The next prime is 4524523. The reversal of 4524521 is 1254254.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 1755625 = 1664^2 + 1325^2 .

It is a cyclic number.

It is not a de Polignac number, because 4524521 - 2²² = 330217 is a prime.

Together with 4524523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4524523) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2262260 + 2262261.

It is an arithmetic number, because the mean of its divisors is an integer number (2262261).

Almost surely, 2^4524521 is an apocalyptic number.

It is an amenable number.

4524521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4524521 is an equidigital number, since it uses as much as digits as its factorization.

4524521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1600, while the sum is 23.

The square root of 4524521 is about 2127.0921465701. The cubic root of 4524521 is about 165.3956955425.

Adding to 4524521 its reverse (1254254), we get a palindrome (5778775).

The spelling of 4524521 in words is "four million, five hundred twenty-four thousand, five hundred twenty-one".