242325521 has 2 divisors, whose sum is σ = 242325522. Its totient is φ = 242325520.

The previous prime is 242325443. The next prime is 242325553. The reversal of 242325521 is 125523242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 234702400 + 7623121 = 15320^2 + 2761^2 .

It is a cyclic number.

It is not a de Polignac number, because 242325521 - 2¹⁰ = 242324497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242325571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121162760 + 121162761.

It is an arithmetic number, because the mean of its divisors is an integer number (121162761).

Almost surely, 2^242325521 is an apocalyptic number.

It is an amenable number.

242325521 is a deficient number, since it is larger than the sum of its proper divisors (1).

242325521 is an equidigital number, since it uses as much as digits as its factorization.

242325521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 26.

The square root of 242325521 is about 15566.8083112756. The cubic root of 242325521 is about 623.4472568298.

Adding to 242325521 its reverse (125523242), we get a palindrome (367848763).

The spelling of 242325521 in words is "two hundred forty-two million, three hundred twenty-five thousand, five hundred twenty-one".