452521 has 2 divisors, whose sum is σ = 452522. Its totient is φ = 452520.

The previous prime is 452519. The next prime is 452531. The reversal of 452521 is 125254.

452521 is nontrivially palindromic in base 8.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384400 + 68121 = 620^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 452521 - 2¹ = 452519 is a prime.

Together with 452519, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

452521 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (452531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226260 + 226261.

It is an arithmetic number, because the mean of its divisors is an integer number (226261).

2⁴⁵²⁵²¹ is an apocalyptic number.

It is an amenable number.

452521 is a deficient number, since it is larger than the sum of its proper divisors (1).

452521 is an equidigital number, since it uses as much as digits as its factorization.

452521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 400, while the sum is 19.

The square root of 452521 is about 672.6968113497. The cubic root of 452521 is about 76.7737780308.

Adding to 452521 its reverse (125254), we get a palindrome (577775).

It can be divided in two parts, 4 and 52521, that added together give a palindrome (52525).

The spelling of 452521 in words is "four hundred fifty-two thousand, five hundred twenty-one".