572441809 has 2 divisors, whose sum is σ = 572441810. Its totient is φ = 572441808.

The previous prime is 572441803. The next prime is 572441827. The reversal of 572441809 is 908144275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 447449409 + 124992400 = 21153^2 + 11180^2 .

It is a cyclic number.

It is not a de Polignac number, because 572441809 - 2²³ = 564053201 is a prime.

It is not a weakly prime, because it can be changed into another prime (572441803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286220904 + 286220905.

It is an arithmetic number, because the mean of its divisors is an integer number (286220905).

Almost surely, 2^572441809 is an apocalyptic number.

It is an amenable number.

572441809 is a deficient number, since it is larger than the sum of its proper divisors (1).

572441809 is an equidigital number, since it uses as much as digits as its factorization.

572441809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 572441809 is about 23925.7561844971. The cubic root of 572441809 is about 830.3167170838.

The spelling of 572441809 in words is "five hundred seventy-two million, four hundred forty-one thousand, eight hundred nine".