505136207 has 2 divisors, whose sum is σ = 505136208. Its totient is φ = 505136206.

The previous prime is 505136167. The next prime is 505136221. The reversal of 505136207 is 702631505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505136207 - 2¹⁸ = 504874063 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505136207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505136237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252568103 + 252568104.

It is an arithmetic number, because the mean of its divisors is an integer number (252568104).

Almost surely, 2^505136207 is an apocalyptic number.

505136207 is a deficient number, since it is larger than the sum of its proper divisors (1).

505136207 is an equidigital number, since it uses as much as digits as its factorization.

505136207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 505136207 is about 22475.2354158972. The cubic root of 505136207 is about 796.4090129454.

The spelling of 505136207 in words is "five hundred five million, one hundred thirty-six thousand, two hundred seven".