51453041161 has 2 divisors, whose sum is σ = 51453041162. Its totient is φ = 51453041160.

The previous prime is 51453041153. The next prime is 51453041173. The reversal of 51453041161 is 16114035415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33138561600 + 18314479561 = 182040^2 + 135331^2 .

It is a cyclic number.

It is not a de Polignac number, because 51453041161 - 2³ = 51453041153 is a prime.

It is not a weakly prime, because it can be changed into another prime (51423041161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25726520580 + 25726520581.

It is an arithmetic number, because the mean of its divisors is an integer number (25726520581).

Almost surely, 2^51453041161 is an apocalyptic number.

It is an amenable number.

51453041161 is a deficient number, since it is larger than the sum of its proper divisors (1).

51453041161 is an equidigital number, since it uses as much as digits as its factorization.

51453041161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 51453041161 its reverse (16114035415), we get a palindrome (67567076576).

The spelling of 51453041161 in words is "fifty-one billion, four hundred fifty-three million, forty-one thousand, one hundred sixty-one".