574242521 has 2 divisors, whose sum is σ = 574242522. Its totient is φ = 574242520.

The previous prime is 574242467. The next prime is 574242523. The reversal of 574242521 is 125242475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337236496 + 237006025 = 18364^2 + 15395^2 .

It is a cyclic number.

It is not a de Polignac number, because 574242521 - 2²⁶ = 507133657 is a prime.

It is a Sophie Germain prime.

Together with 574242523, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (574242523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 287121260 + 287121261.

It is an arithmetic number, because the mean of its divisors is an integer number (287121261).

Almost surely, 2^574242521 is an apocalyptic number.

It is an amenable number.

574242521 is a deficient number, since it is larger than the sum of its proper divisors (1).

574242521 is an equidigital number, since it uses as much as digits as its factorization.

574242521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22400, while the sum is 32.

The square root of 574242521 is about 23963.3578824004. The cubic root of 574242521 is about 831.1864394011.

Adding to 574242521 its reverse (125242475), we get a palindrome (699484996).

The spelling of 574242521 in words is "five hundred seventy-four million, two hundred forty-two thousand, five hundred twenty-one".