51066137 has 2 divisors, whose sum is σ = 51066138. Its totient is φ = 51066136.

The previous prime is 51066131. The next prime is 51066149. The reversal of 51066137 is 73166015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50922496 + 143641 = 7136^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 51066137 - 2⁴ = 51066121 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51066131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25533068 + 25533069.

It is an arithmetic number, because the mean of its divisors is an integer number (25533069).

Almost surely, 2^51066137 is an apocalyptic number.

It is an amenable number.

51066137 is a deficient number, since it is larger than the sum of its proper divisors (1).

51066137 is an equidigital number, since it uses as much as digits as its factorization.

51066137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 51066137 is about 7146.0574444934. The cubic root of 51066137 is about 371.0032112247.

The spelling of 51066137 in words is "fifty-one million, sixty-six thousand, one hundred thirty-seven".