51080789 has 2 divisors, whose sum is σ = 51080790. Its totient is φ = 51080788.

The previous prime is 51080761. The next prime is 51080819. The reversal of 51080789 is 98708015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34023889 + 17056900 = 5833^2 + 4130^2 .

It is a cyclic number.

It is not a de Polignac number, because 51080789 - 2¹⁶ = 51015253 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51080719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25540394 + 25540395.

It is an arithmetic number, because the mean of its divisors is an integer number (25540395).

Almost surely, 2^51080789 is an apocalyptic number.

It is an amenable number.

51080789 is a deficient number, since it is larger than the sum of its proper divisors (1).

51080789 is an equidigital number, since it uses as much as digits as its factorization.

51080789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 51080789 is about 7147.0825516430. The cubic root of 51080789 is about 371.0386908305.

The spelling of 51080789 in words is "fifty-one million, eighty thousand, seven hundred eighty-nine".