51032543651291 has 2 divisors, whose sum is σ = 51032543651292. Its totient is φ = 51032543651290.

The previous prime is 51032543651239. The next prime is 51032543651357. The reversal of 51032543651291 is 19215634523015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51032543651291 - 2³⁸ = 50757665744347 is a prime.

It is not a weakly prime, because it can be changed into another prime (51032543351291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25516271825645 + 25516271825646.

It is an arithmetic number, because the mean of its divisors is an integer number (25516271825646).

Almost surely, 2^{51032543651291} is an apocalyptic number.

51032543651291 is a deficient number, since it is larger than the sum of its proper divisors (1).

51032543651291 is an equidigital number, since it uses as much as digits as its factorization.

51032543651291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 51032543651291 in words is "fifty-one trillion, thirty-two billion, five hundred forty-three million, six hundred fifty-one thousand, two hundred ninety-one".