2433521 has 2 divisors, whose sum is σ = 2433522. Its totient is φ = 2433520.

The previous prime is 2433503. The next prime is 2433523. The reversal of 2433521 is 1253342.

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., 2146225 + 287296 = 1465^2 + 536^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2433521 is a prime.

Together with 2433523, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2433493 and 2433502.

It is not a weakly prime, because it can be changed into another prime (2433523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1216760 + 1216761.

It is an arithmetic number, because the mean of its divisors is an integer number (1216761).

2^2433521 is an apocalyptic number.

It is an amenable number.

2433521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2433521 is an equidigital number, since it uses as much as digits as its factorization.

2433521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 20.

The square root of 2433521 is about 1559.9746792817. The cubic root of 2433521 is about 134.5070453231.

Adding to 2433521 its reverse (1253342), we get a palindrome (3686863).

The spelling of 2433521 in words is "two million, four hundred thirty-three thousand, five hundred twenty-one".