51280256471 has 2 divisors, whose sum is σ = 51280256472. Its totient is φ = 51280256470.

The previous prime is 51280256459. The next prime is 51280256527. The reversal of 51280256471 is 17465208215.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51280256471 - 2²⁶ = 51213147607 is a prime.

It is a super-3 number, since 3×51280256471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51280255471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25640128235 + 25640128236.

It is an arithmetic number, because the mean of its divisors is an integer number (25640128236).

Almost surely, 2^51280256471 is an apocalyptic number.

51280256471 is a deficient number, since it is larger than the sum of its proper divisors (1).

51280256471 is an equidigital number, since it uses as much as digits as its factorization.

51280256471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 51280256471 in words is "fifty-one billion, two hundred eighty million, two hundred fifty-six thousand, four hundred seventy-one".