506264909 has 2 divisors, whose sum is σ = 506264910. Its totient is φ = 506264908.

The previous prime is 506264903. The next prime is 506264911. The reversal of 506264909 is 909462605.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 495062500 + 11202409 = 22250^2 + 3347^2 .

It is a cyclic number.

It is not a de Polignac number, because 506264909 - 2²⁴ = 489487693 is a prime.

Together with 506264911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (506264903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253132454 + 253132455.

It is an arithmetic number, because the mean of its divisors is an integer number (253132455).

Almost surely, 2^506264909 is an apocalyptic number.

It is an amenable number.

506264909 is a deficient number, since it is larger than the sum of its proper divisors (1).

506264909 is an equidigital number, since it uses as much as digits as its factorization.

506264909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 506264909 is about 22500.3313086719. The cubic root of 506264909 is about 797.0017506011.

The spelling of 506264909 in words is "five hundred six million, two hundred sixty-four thousand, nine hundred nine".