51766339 has 2 divisors, whose sum is σ = 51766340. Its totient is φ = 51766338.

The previous prime is 51766327. The next prime is 51766381. The reversal of 51766339 is 93366715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51766339 - 2⁹ = 51765827 is a prime.

It is not a weakly prime, because it can be changed into another prime (51763339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25883169 + 25883170.

It is an arithmetic number, because the mean of its divisors is an integer number (25883170).

Almost surely, 2^51766339 is an apocalyptic number.

51766339 is a deficient number, since it is larger than the sum of its proper divisors (1).

51766339 is an equidigital number, since it uses as much as digits as its factorization.

51766339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 102060, while the sum is 40.

The square root of 51766339 is about 7194.8828343483. The cubic root of 51766339 is about 372.6912106314.

The spelling of 51766339 in words is "fifty-one million, seven hundred sixty-six thousand, three hundred thirty-nine".