409053569 has 2 divisors, whose sum is σ = 409053570. Its totient is φ = 409053568.

The previous prime is 409053517. The next prime is 409053607. The reversal of 409053569 is 965350904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316412944 + 92640625 = 17788^2 + 9625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409053569 is a prime.

It is a super-2 number, since 2×409053569² = 334649644623275522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (409853569) 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, 204526784 + 204526785.

It is an arithmetic number, because the mean of its divisors is an integer number (204526785).

Almost surely, 2^409053569 is an apocalyptic number.

It is an amenable number.

409053569 is a deficient number, since it is larger than the sum of its proper divisors (1).

409053569 is an equidigital number, since it uses as much as digits as its factorization.

409053569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 409053569 is about 20225.0727810804. The cubic root of 409053569 is about 742.3238179709.

The spelling of 409053569 in words is "four hundred nine million, fifty-three thousand, five hundred sixty-nine".