505645027 has 2 divisors, whose sum is σ = 505645028. Its totient is φ = 505645026.

The previous prime is 505645003. The next prime is 505645067. The reversal of 505645027 is 720546505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505645027 - 2¹⁵ = 505612259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505644983 and 505645001.

It is not a weakly prime, because it can be changed into another prime (505645067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252822513 + 252822514.

It is an arithmetic number, because the mean of its divisors is an integer number (252822514).

Almost surely, 2^505645027 is an apocalyptic number.

505645027 is a deficient number, since it is larger than the sum of its proper divisors (1).

505645027 is an equidigital number, since it uses as much as digits as its factorization.

505645027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 505645027 is about 22486.5521367772. The cubic root of 505645027 is about 796.6763288648.

The spelling of 505645027 in words is "five hundred five million, six hundred forty-five thousand, twenty-seven".