51859771 has 2 divisors, whose sum is σ = 51859772. Its totient is φ = 51859770.

The previous prime is 51859757. The next prime is 51859777. The reversal of 51859771 is 17795815.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51859771 - 2¹¹ = 51857723 is a prime.

It is not a weakly prime, because it can be changed into another prime (51859777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25929885 + 25929886.

It is an arithmetic number, because the mean of its divisors is an integer number (25929886).

Almost surely, 2^51859771 is an apocalyptic number.

51859771 is a deficient number, since it is larger than the sum of its proper divisors (1).

51859771 is an equidigital number, since it uses as much as digits as its factorization.

51859771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 43.

The square root of 51859771 is about 7201.3728552270. The cubic root of 51859771 is about 372.9152967682.

The spelling of 51859771 in words is "fifty-one million, eight hundred fifty-nine thousand, seven hundred seventy-one".