51996071 has 2 divisors, whose sum is σ = 51996072. Its totient is φ = 51996070.

The previous prime is 51996029. The next prime is 51996143. The reversal of 51996071 is 17069915.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51996071 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51996001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25998035 + 25998036.

It is an arithmetic number, because the mean of its divisors is an integer number (25998036).

Almost surely, 2^51996071 is an apocalyptic number.

51996071 is a deficient number, since it is larger than the sum of its proper divisors (1).

51996071 is an equidigital number, since it uses as much as digits as its factorization.

51996071 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 51996071 is about 7210.8301186479. The cubic root of 51996071 is about 373.2417147806.

The spelling of 51996071 in words is "fifty-one million, nine hundred ninety-six thousand, seventy-one".