509224957 has 2 divisors, whose sum is σ = 509224958. Its totient is φ = 509224956.

The previous prime is 509224939. The next prime is 509224979. The reversal of 509224957 is 759422905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 476723556 + 32501401 = 21834^2 + 5701^2 .

It is a cyclic number.

It is not a de Polignac number, because 509224957 - 2⁷ = 509224829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509224057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254612478 + 254612479.

It is an arithmetic number, because the mean of its divisors is an integer number (254612479).

Almost surely, 2^509224957 is an apocalyptic number.

It is an amenable number.

509224957 is a deficient number, since it is larger than the sum of its proper divisors (1).

509224957 is an equidigital number, since it uses as much as digits as its factorization.

509224957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 509224957 is about 22566.0133164899. The cubic root of 509224957 is about 798.5520459717.

The spelling of 509224957 in words is "five hundred nine million, two hundred twenty-four thousand, nine hundred fifty-seven".