564730549 has 2 divisors, whose sum is σ = 564730550. Its totient is φ = 564730548.

The previous prime is 564730547. The next prime is 564730591. The reversal of 564730549 is 945037465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492174225 + 72556324 = 22185^2 + 8518^2 .

It is a cyclic number.

It is not a de Polignac number, because 564730549 - 2¹ = 564730547 is a prime.

Together with 564730547, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564730547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282365274 + 282365275.

It is an arithmetic number, because the mean of its divisors is an integer number (282365275).

Almost surely, 2^564730549 is an apocalyptic number.

It is an amenable number.

564730549 is a deficient number, since it is larger than the sum of its proper divisors (1).

564730549 is an equidigital number, since it uses as much as digits as its factorization.

564730549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 43.

The square root of 564730549 is about 23764.0600276973. The cubic root of 564730549 is about 826.5715006178.

The spelling of 564730549 in words is "five hundred sixty-four million, seven hundred thirty thousand, five hundred forty-nine".