505664707 has 2 divisors, whose sum is σ = 505664708. Its totient is φ = 505664706.

The previous prime is 505664699. The next prime is 505664713. The reversal of 505664707 is 707466505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505664707 - 2³ = 505664699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505664707.

It is not a weakly prime, because it can be changed into another prime (505664207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252832353 + 252832354.

It is an arithmetic number, because the mean of its divisors is an integer number (252832354).

Almost surely, 2^505664707 is an apocalyptic number.

505664707 is a deficient number, since it is larger than the sum of its proper divisors (1).

505664707 is an equidigital number, since it uses as much as digits as its factorization.

505664707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 505664707 is about 22486.9897273957. The cubic root of 505664707 is about 796.6866644335.

The spelling of 505664707 in words is "five hundred five million, six hundred sixty-four thousand, seven hundred seven".