51765943 has 2 divisors, whose sum is σ = 51765944. Its totient is φ = 51765942.

The previous prime is 51765929. The next prime is 51765949. The reversal of 51765943 is 34956715.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51765943 - 2⁵ = 51765911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51765896 and 51765905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51765949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25882971 + 25882972.

It is an arithmetic number, because the mean of its divisors is an integer number (25882972).

Almost surely, 2^51765943 is an apocalyptic number.

51765943 is a deficient number, since it is larger than the sum of its proper divisors (1).

51765943 is an equidigital number, since it uses as much as digits as its factorization.

51765943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 40.

The square root of 51765943 is about 7194.8553147371. The cubic root of 51765943 is about 372.6902602964.

The spelling of 51765943 in words is "fifty-one million, seven hundred sixty-five thousand, nine hundred forty-three".