505069997 has 2 divisors, whose sum is σ = 505069998. Its totient is φ = 505069996.

The previous prime is 505069973. The next prime is 505070009. The reversal of 505069997 is 799960505.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 496665796 + 8404201 = 22286^2 + 2899^2 .

It is a cyclic number.

It is not a de Polignac number, because 505069997 - 2²² = 500875693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505069907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252534998 + 252534999.

It is an arithmetic number, because the mean of its divisors is an integer number (252534999).

Almost surely, 2^505069997 is an apocalyptic number.

It is an amenable number.

505069997 is a deficient number, since it is larger than the sum of its proper divisors (1).

505069997 is an equidigital number, since it uses as much as digits as its factorization.

505069997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 765450, while the sum is 50.

The square root of 505069997 is about 22473.7624130896. The cubic root of 505069997 is about 796.3742153707.

The spelling of 505069997 in words is "five hundred five million, sixty-nine thousand, nine hundred ninety-seven".