50971939 has 2 divisors, whose sum is σ = 50971940. Its totient is φ = 50971938.

The previous prime is 50971909. The next prime is 50971951. The reversal of 50971939 is 93917905.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50971939 - 2¹⁹ = 50447651 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50971895 and 50971904.

It is not a weakly prime, because it can be changed into another prime (50971909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25485969 + 25485970.

It is an arithmetic number, because the mean of its divisors is an integer number (25485970).

Almost surely, 2^50971939 is an apocalyptic number.

50971939 is a deficient number, since it is larger than the sum of its proper divisors (1).

50971939 is an equidigital number, since it uses as much as digits as its factorization.

50971939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 76545, while the sum is 43.

The square root of 50971939 is about 7139.4634952495. The cubic root of 50971939 is about 370.7749499076.

The spelling of 50971939 in words is "fifty million, nine hundred seventy-one thousand, nine hundred thirty-nine".