501650101 has 2 divisors, whose sum is σ = 501650102. Its totient is φ = 501650100.

The previous prime is 501650077. The next prime is 501650111. The reversal of 501650101 is 101056105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 413308900 + 88341201 = 20330^2 + 9399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-501650101 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501650111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250825050 + 250825051.

It is an arithmetic number, because the mean of its divisors is an integer number (250825051).

Almost surely, 2^501650101 is an apocalyptic number.

It is an amenable number.

501650101 is a deficient number, since it is larger than the sum of its proper divisors (1).

501650101 is an equidigital number, since it uses as much as digits as its factorization.

501650101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 501650101 is about 22397.5467629828. The cubic root of 501650101 is about 794.5726912671.

The spelling of 501650101 in words is "five hundred one million, six hundred fifty thousand, one hundred one".