505861207 has 2 divisors, whose sum is σ = 505861208. Its totient is φ = 505861206.

The previous prime is 505861201. The next prime is 505861211. The reversal of 505861207 is 702168505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505861207 - 2²⁷ = 371643479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505861201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252930603 + 252930604.

It is an arithmetic number, because the mean of its divisors is an integer number (252930604).

Almost surely, 2^505861207 is an apocalyptic number.

505861207 is a deficient number, since it is larger than the sum of its proper divisors (1).

505861207 is an equidigital number, since it uses as much as digits as its factorization.

505861207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 505861207 is about 22491.3584960980. The cubic root of 505861207 is about 796.7898478629.

The spelling of 505861207 in words is "five hundred five million, eight hundred sixty-one thousand, two hundred seven".