51280256527 has 2 divisors, whose sum is σ = 51280256528. Its totient is φ = 51280256526.

The previous prime is 51280256471. The next prime is 51280256581. The reversal of 51280256527 is 72565208215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51280256527 - 2¹⁵ = 51280223759 is a prime.

It is a super-2 number, since 2×51280256527² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51280256627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25640128263 + 25640128264.

It is an arithmetic number, because the mean of its divisors is an integer number (25640128264).

Almost surely, 2^51280256527 is an apocalyptic number.

51280256527 is a deficient number, since it is larger than the sum of its proper divisors (1).

51280256527 is an equidigital number, since it uses as much as digits as its factorization.

51280256527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336000, while the sum is 43.

The spelling of 51280256527 in words is "fifty-one billion, two hundred eighty million, two hundred fifty-six thousand, five hundred twenty-seven".