51701311033 has 2 divisors, whose sum is σ = 51701311034. Its totient is φ = 51701311032.

The previous prime is 51701311021. The next prime is 51701311043. The reversal of 51701311033 is 33011310715.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37020838464 + 14680472569 = 192408^2 + 121163^2 .

It is a cyclic number.

It is not a de Polignac number, because 51701311033 - 2²⁵ = 51667756601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51701310989 and 51701311007.

It is not a weakly prime, because it can be changed into another prime (51701311043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850655516 + 25850655517.

It is an arithmetic number, because the mean of its divisors is an integer number (25850655517).

Almost surely, 2^51701311033 is an apocalyptic number.

It is an amenable number.

51701311033 is a deficient number, since it is larger than the sum of its proper divisors (1).

51701311033 is an equidigital number, since it uses as much as digits as its factorization.

51701311033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 25.

Adding to 51701311033 its reverse (33011310715), we get a palindrome (84712621748).

The spelling of 51701311033 in words is "fifty-one billion, seven hundred one million, three hundred eleven thousand, thirty-three".