51005737 has 2 divisors, whose sum is σ = 51005738. Its totient is φ = 51005736.

The previous prime is 51005711. The next prime is 51005749. The reversal of 51005737 is 73750015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50537881 + 467856 = 7109^2 + 684^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51005737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51005777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25502868 + 25502869.

It is an arithmetic number, because the mean of its divisors is an integer number (25502869).

Almost surely, 2^51005737 is an apocalyptic number.

It is an amenable number.

51005737 is a deficient number, since it is larger than the sum of its proper divisors (1).

51005737 is an equidigital number, since it uses as much as digits as its factorization.

51005737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 51005737 is about 7141.8300875896. The cubic root of 51005737 is about 370.8568818050.

The spelling of 51005737 in words is "fifty-one million, five thousand, seven hundred thirty-seven".