50101 has 2 divisors, whose sum is σ = 50102. Its totient is φ = 50100.

The previous prime is 50093. The next prime is 50111. The reversal of 50101 is 10105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34225 + 15876 = 185^2 + 126^2 .

It is a cyclic number.

It is not a de Polignac number, because 50101 - 2³ = 50093 is a prime.

It is a super-2 number, since 2×50101² = 5020220402, which contains 22 as substring.

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

50101 is a modest number, since divided by 101 gives 5 as remainder.

50101 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25050 + 25051.

It is an arithmetic number, because the mean of its divisors is an integer number (25051).

2⁵⁰¹⁰¹ is an apocalyptic number.

It is an amenable number.

50101 is a deficient number, since it is larger than the sum of its proper divisors (1).

50101 is an equidigital number, since it uses as much as digits as its factorization.

50101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 50101 is about 223.8325266801. The cubic root of 50101 is about 36.8651041146.

Adding to 50101 its reverse (10105), we get a palindrome (60206).

It can be divided in two parts, 50 and 101, that multiplied together give a triangular number (5050 = T₁₀₀).

The spelling of 50101 in words is "fifty thousand, one hundred one".