51174943 has 2 divisors, whose sum is σ = 51174944. Its totient is φ = 51174942.

The previous prime is 51174941. The next prime is 51174989. The reversal of 51174943 is 34947115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51174943 - 2¹ = 51174941 is a prime.

Together with 51174941, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 51174899 and 51174908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51174941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25587471 + 25587472.

It is an arithmetic number, because the mean of its divisors is an integer number (25587472).

Almost surely, 2^51174943 is an apocalyptic number.

51174943 is a deficient number, since it is larger than the sum of its proper divisors (1).

51174943 is an equidigital number, since it uses as much as digits as its factorization.

51174943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 51174943 is about 7153.6664026218. Note that the first 3 decimals coincide. The cubic root of 51174943 is about 371.2665216528.

The spelling of 51174943 in words is "fifty-one million, one hundred seventy-four thousand, nine hundred forty-three".