210050538961 has 2 divisors, whose sum is σ = 210050538962. Its totient is φ = 210050538960.

The previous prime is 210050538923. The next prime is 210050538979. The reversal of 210050538961 is 169835050012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200127390736 + 9923148225 = 447356^2 + 99615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210050538961 is a prime.

It is not a weakly prime, because it can be changed into another prime (210050538361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105025269480 + 105025269481.

It is an arithmetic number, because the mean of its divisors is an integer number (105025269481).

Almost surely, 2^210050538961 is an apocalyptic number.

It is an amenable number.

210050538961 is a deficient number, since it is larger than the sum of its proper divisors (1).

210050538961 is an equidigital number, since it uses as much as digits as its factorization.

210050538961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 40.

Adding to 210050538961 its reverse (169835050012), we get a palindrome (379885588973).

The spelling of 210050538961 in words is "two hundred ten billion, fifty million, five hundred thirty-eight thousand, nine hundred sixty-one".