605505101 has 2 divisors, whose sum is σ = 605505102. Its totient is φ = 605505100.

The previous prime is 605505067. The next prime is 605505149. The reversal of 605505101 is 101505506.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600985225 + 4519876 = 24515^2 + 2126^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605505101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (605505161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302752550 + 302752551.

It is an arithmetic number, because the mean of its divisors is an integer number (302752551).

Almost surely, 2^605505101 is an apocalyptic number.

It is an amenable number.

605505101 is a deficient number, since it is larger than the sum of its proper divisors (1).

605505101 is an equidigital number, since it uses as much as digits as its factorization.

605505101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 605505101 is about 24607.0132482591. The cubic root of 605505101 is about 846.0043615772.

The spelling of 605505101 in words is "six hundred five million, five hundred five thousand, one hundred one".