505075289 has 2 divisors, whose sum is σ = 505075290. Its totient is φ = 505075288.

The previous prime is 505075273. The next prime is 505075313. The reversal of 505075289 is 982570505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400320064 + 104755225 = 20008^2 + 10235^2 .

It is a cyclic number.

It is not a de Polignac number, because 505075289 - 2⁴ = 505075273 is a prime.

It is not a weakly prime, because it can be changed into another prime (505078289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252537644 + 252537645.

It is an arithmetic number, because the mean of its divisors is an integer number (252537645).

Almost surely, 2^505075289 is an apocalyptic number.

It is an amenable number.

505075289 is a deficient number, since it is larger than the sum of its proper divisors (1).

505075289 is an equidigital number, since it uses as much as digits as its factorization.

505075289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126000, while the sum is 41.

The square root of 505075289 is about 22473.8801500764. The cubic root of 505075289 is about 796.3769967658.

The spelling of 505075289 in words is "five hundred five million, seventy-five thousand, two hundred eighty-nine".