50971961 has 2 divisors, whose sum is σ = 50971962. Its totient is φ = 50971960.

The previous prime is 50971957. The next prime is 50972011. The reversal of 50971961 is 16917905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40246336 + 10725625 = 6344^2 + 3275^2 .

It is a cyclic number.

It is not a de Polignac number, because 50971961 - 2² = 50971957 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50971901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25485980 + 25485981.

It is an arithmetic number, because the mean of its divisors is an integer number (25485981).

Almost surely, 2^50971961 is an apocalyptic number.

It is an amenable number.

50971961 is a deficient number, since it is larger than the sum of its proper divisors (1).

50971961 is an equidigital number, since it uses as much as digits as its factorization.

50971961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 50971961 is about 7139.4650359813. The cubic root of 50971961 is about 370.7750032510.

The spelling of 50971961 in words is "fifty million, nine hundred seventy-one thousand, nine hundred sixty-one".