572720609 has 2 divisors, whose sum is σ = 572720610. Its totient is φ = 572720608.

The previous prime is 572720587. The next prime is 572720627. The reversal of 572720609 is 906027275.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552109009 + 20611600 = 23497^2 + 4540^2 .

It is a cyclic number.

It is not a de Polignac number, because 572720609 - 2¹⁶ = 572655073 is a prime.

It is not a weakly prime, because it can be changed into another prime (572720639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286360304 + 286360305.

It is an arithmetic number, because the mean of its divisors is an integer number (286360305).

Almost surely, 2^572720609 is an apocalyptic number.

It is an amenable number.

572720609 is a deficient number, since it is larger than the sum of its proper divisors (1).

572720609 is an equidigital number, since it uses as much as digits as its factorization.

572720609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 572720609 is about 23931.5818323821. The cubic root of 572720609 is about 830.4514933618.

The spelling of 572720609 in words is "five hundred seventy-two million, seven hundred twenty thousand, six hundred nine".