51650737 has 2 divisors, whose sum is σ = 51650738. Its totient is φ = 51650736.

The previous prime is 51650723. The next prime is 51650761. The reversal of 51650737 is 73705615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44675856 + 6974881 = 6684^2 + 2641^2 .

It is a cyclic number.

It is not a de Polignac number, because 51650737 - 2¹¹ = 51648689 is a prime.

It is not a weakly prime, because it can be changed into another prime (51600737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25825368 + 25825369.

It is an arithmetic number, because the mean of its divisors is an integer number (25825369).

Almost surely, 2^51650737 is an apocalyptic number.

It is an amenable number.

51650737 is a deficient number, since it is larger than the sum of its proper divisors (1).

51650737 is an equidigital number, since it uses as much as digits as its factorization.

51650737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22050, while the sum is 34.

The square root of 51650737 is about 7186.8447179552. The cubic root of 51650737 is about 372.4135787384.

The spelling of 51650737 in words is "fifty-one million, six hundred fifty thousand, seven hundred thirty-seven".