505568101 has 2 divisors, whose sum is σ = 505568102. Its totient is φ = 505568100.

The previous prime is 505568059. The next prime is 505568177. The reversal of 505568101 is 101865505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273737025 + 231831076 = 16545^2 + 15226^2 .

It is a cyclic number.

It is not a de Polignac number, because 505568101 - 2¹³ = 505559909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505568201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252784050 + 252784051.

It is an arithmetic number, because the mean of its divisors is an integer number (252784051).

Almost surely, 2^505568101 is an apocalyptic number.

It is an amenable number.

505568101 is a deficient number, since it is larger than the sum of its proper divisors (1).

505568101 is an equidigital number, since it uses as much as digits as its factorization.

505568101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 505568101 is about 22484.8415827197. The cubic root of 505568101 is about 796.6359261922.

The spelling of 505568101 in words is "five hundred five million, five hundred sixty-eight thousand, one hundred one".