50965181 has 2 divisors, whose sum is σ = 50965182. Its totient is φ = 50965180.

The previous prime is 50965153. The next prime is 50965193. The reversal of 50965181 is 18156905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37576900 + 13388281 = 6130^2 + 3659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50965181 is a prime.

It is a super-2 number, since 2×50965181² = 5194899348725522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50965141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25482590 + 25482591.

It is an arithmetic number, because the mean of its divisors is an integer number (25482591).

Almost surely, 2^50965181 is an apocalyptic number.

It is an amenable number.

50965181 is a deficient number, since it is larger than the sum of its proper divisors (1).

50965181 is an equidigital number, since it uses as much as digits as its factorization.

50965181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 50965181 is about 7138.9901946984. The cubic root of 50965181 is about 370.7585630621.

The spelling of 50965181 in words is "fifty million, nine hundred sixty-five thousand, one hundred eighty-one".