51532333323491 has 2 divisors, whose sum is σ = 51532333323492. Its totient is φ = 51532333323490.

The previous prime is 51532333323481. The next prime is 51532333323533. The reversal of 51532333323491 is 19432333323515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51532333323491 - 2¹⁴ = 51532333307107 is a prime.

It is not a weakly prime, because it can be changed into another prime (51532333323481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25766166661745 + 25766166661746.

It is an arithmetic number, because the mean of its divisors is an integer number (25766166661746).

Almost surely, 2^{51532333323491} is an apocalyptic number.

51532333323491 is a deficient number, since it is larger than the sum of its proper divisors (1).

51532333323491 is an equidigital number, since it uses as much as digits as its factorization.

51532333323491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2624400, while the sum is 47.

The spelling of 51532333323491 in words is "fifty-one trillion, five hundred thirty-two billion, three hundred thirty-three million, three hundred twenty-three thousand, four hundred ninety-one".