51455524640033 has 2 divisors, whose sum is σ = 51455524640034. Its totient is φ = 51455524640032.

The previous prime is 51455524639993. The next prime is 51455524640041. The reversal of 51455524640033 is 33004642555415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34503958236049 + 16951566403984 = 5874007^2 + 4117228^2 .

It is a cyclic number.

It is not a de Polignac number, because 51455524640033 - 2¹⁸ = 51455524377889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51455524640033.

It is not a weakly prime, because it can be changed into another prime (51457524640033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25727762320016 + 25727762320017.

It is an arithmetic number, because the mean of its divisors is an integer number (25727762320017).

Almost surely, 2^{51455524640033} is an apocalyptic number.

It is an amenable number.

51455524640033 is a deficient number, since it is larger than the sum of its proper divisors (1).

51455524640033 is an equidigital number, since it uses as much as digits as its factorization.

51455524640033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320000, while the sum is 47.

The spelling of 51455524640033 in words is "fifty-one trillion, four hundred fifty-five billion, five hundred twenty-four million, six hundred forty thousand, thirty-three".