506040289 has 2 divisors, whose sum is σ = 506040290. Its totient is φ = 506040288.

The previous prime is 506040287. The next prime is 506040299. The reversal of 506040289 is 982040605.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479259664 + 26780625 = 21892^2 + 5175^2 .

It is a cyclic number.

It is not a de Polignac number, because 506040289 - 2¹ = 506040287 is a prime.

Together with 506040287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (506040287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 253020144 + 253020145.

It is an arithmetic number, because the mean of its divisors is an integer number (253020145).

Almost surely, 2^506040289 is an apocalyptic number.

It is an amenable number.

506040289 is a deficient number, since it is larger than the sum of its proper divisors (1).

506040289 is an equidigital number, since it uses as much as digits as its factorization.

506040289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 506040289 is about 22495.3392728361. The cubic root of 506040289 is about 796.8838617167.

The spelling of 506040289 in words is "five hundred six million, forty thousand, two hundred eighty-nine".