505871027 has 2 divisors, whose sum is σ = 505871028. Its totient is φ = 505871026.

The previous prime is 505871021. The next prime is 505871059. The reversal of 505871027 is 720178505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505871027 - 2²² = 501676723 is a prime.

It is not a weakly prime, because it can be changed into another prime (505871021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252935513 + 252935514.

It is an arithmetic number, because the mean of its divisors is an integer number (252935514).

Almost surely, 2^505871027 is an apocalyptic number.

505871027 is a deficient number, since it is larger than the sum of its proper divisors (1).

505871027 is an equidigital number, since it uses as much as digits as its factorization.

505871027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 505871027 is about 22491.5768011049. The cubic root of 505871027 is about 796.7950037077.

The spelling of 505871027 in words is "five hundred five million, eight hundred seventy-one thousand, twenty-seven".