4523242421 has 2 divisors, whose sum is σ = 4523242422. Its totient is φ = 4523242420.

The previous prime is 4523242403. The next prime is 4523242439. The reversal of 4523242421 is 1242423254.

It is a balanced prime because it is at equal distance from previous prime (4523242403) and next prime (4523242439).

It can be written as a sum of positive squares in only one way, i.e., 4523235025 + 7396 = 67255^2 + 86^2 .

It is a cyclic number.

It is not a de Polignac number, because 4523242421 - 2⁶ = 4523242357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4523242621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261621210 + 2261621211.

It is an arithmetic number, because the mean of its divisors is an integer number (2261621211).

Almost surely, 2^4523242421 is an apocalyptic number.

It is an amenable number.

4523242421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4523242421 is an equidigital number, since it uses as much as digits as its factorization.

4523242421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 29.

The square root of 4523242421 is about 67255.0549847370. The cubic root of 4523242421 is about 1653.8011441724.

Adding to 4523242421 its reverse (1242423254), we get a palindrome (5765665675).

The spelling of 4523242421 in words is "four billion, five hundred twenty-three million, two hundred forty-two thousand, four hundred twenty-one".