523311449 has 2 divisors, whose sum is σ = 523311450. Its totient is φ = 523311448.

The previous prime is 523311443. The next prime is 523311457. The reversal of 523311449 is 944113325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 522945424 + 366025 = 22868^2 + 605^2 .

It is a cyclic number.

It is not a de Polignac number, because 523311449 - 2⁸ = 523311193 is a prime.

It is equal to p_27517622 and since 523311449 and 27517622 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (523311443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261655724 + 261655725.

It is an arithmetic number, because the mean of its divisors is an integer number (261655725).

Almost surely, 2^523311449 is an apocalyptic number.

It is an amenable number.

523311449 is a deficient number, since it is larger than the sum of its proper divisors (1).

523311449 is an equidigital number, since it uses as much as digits as its factorization.

523311449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 523311449 is about 22876.0015955586. The cubic root of 523311449 is about 805.8485190265.

The spelling of 523311449 in words is "five hundred twenty-three million, three hundred eleven thousand, four hundred forty-nine".