505059871 has 2 divisors, whose sum is σ = 505059872. Its totient is φ = 505059870.

The previous prime is 505059859. The next prime is 505059913. The reversal of 505059871 is 178950505.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505059871 - 2⁵ = 505059839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505059371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252529935 + 252529936.

It is an arithmetic number, because the mean of its divisors is an integer number (252529936).

Almost surely, 2^505059871 is an apocalyptic number.

505059871 is a deficient number, since it is larger than the sum of its proper divisors (1).

505059871 is an equidigital number, since it uses as much as digits as its factorization.

505059871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 505059871 is about 22473.5371270301. The cubic root of 505059871 is about 796.3688932442.

The spelling of 505059871 in words is "five hundred five million, fifty-nine thousand, eight hundred seventy-one".