51348775801 has 2 divisors, whose sum is σ = 51348775802. Its totient is φ = 51348775800.

The previous prime is 51348775781. The next prime is 51348775823. The reversal of 51348775801 is 10857784315.

51348775801 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., 33520117225 + 17828658576 = 183085^2 + 133524^2 .

It is a cyclic number.

It is not a de Polignac number, because 51348775801 - 2¹¹ = 51348773753 is a prime.

It is a super-2 number, since 2×51348775801² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51348715801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25674387900 + 25674387901.

It is an arithmetic number, because the mean of its divisors is an integer number (25674387901).

Almost surely, 2^51348775801 is an apocalyptic number.

It is an amenable number.

51348775801 is a deficient number, since it is larger than the sum of its proper divisors (1).

51348775801 is an equidigital number, since it uses as much as digits as its factorization.

51348775801 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 51348775801 in words is "fifty-one billion, three hundred forty-eight million, seven hundred seventy-five thousand, eight hundred one".