50986931 has 2 divisors, whose sum is σ = 50986932. Its totient is φ = 50986930.

The previous prime is 50986907. The next prime is 50986939. The reversal of 50986931 is 13968905.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50986931 is a prime.

It is a super-2 number, since 2×50986931² = 5199334265597522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (50986939) by changing a digit.

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

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25493465 + 25493466.

It is an arithmetic number, because the mean of its divisors is an integer number (25493466).

Almost surely, 2^50986931 is an apocalyptic number.

50986931 is a deficient number, since it is larger than the sum of its proper divisors (1).

50986931 is an equidigital number, since it uses as much as digits as its factorization.

50986931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 50986931 is about 7140.5133568953. The cubic root of 50986931 is about 370.8112974436.

The spelling of 50986931 in words is "fifty million, nine hundred eighty-six thousand, nine hundred thirty-one".