523424009 has 2 divisors, whose sum is σ = 523424010. Its totient is φ = 523424008.

The previous prime is 523423997. The next prime is 523424017. The reversal of 523424009 is 900424325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 501894409 + 21529600 = 22403^2 + 4640^2 .

It is a cyclic number.

It is not a de Polignac number, because 523424009 - 2¹² = 523419913 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (523424309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261712004 + 261712005.

It is an arithmetic number, because the mean of its divisors is an integer number (261712005).

Almost surely, 2^523424009 is an apocalyptic number.

It is an amenable number.

523424009 is a deficient number, since it is larger than the sum of its proper divisors (1).

523424009 is an equidigital number, since it uses as much as digits as its factorization.

523424009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 523424009 is about 22878.4616834262. The cubic root of 523424009 is about 805.9062920199.

The spelling of 523424009 in words is "five hundred twenty-three million, four hundred twenty-four thousand, nine".