51072737 has 2 divisors, whose sum is σ = 51072738. Its totient is φ = 51072736.

The previous prime is 51072733. The next prime is 51072751. The reversal of 51072737 is 73727015.

51072737 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38427601 + 12645136 = 6199^2 + 3556^2 .

It is a cyclic number.

It is not a de Polignac number, because 51072737 - 2² = 51072733 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51072733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25536368 + 25536369.

It is an arithmetic number, because the mean of its divisors is an integer number (25536369).

Almost surely, 2^51072737 is an apocalyptic number.

It is an amenable number.

51072737 is a deficient number, since it is larger than the sum of its proper divisors (1).

51072737 is an equidigital number, since it uses as much as digits as its factorization.

51072737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 51072737 is about 7146.5192226706. The cubic root of 51072737 is about 371.0191938690.

The spelling of 51072737 in words is "fifty-one million, seventy-two thousand, seven hundred thirty-seven".