51630260531 has 2 divisors, whose sum is σ = 51630260532. Its totient is φ = 51630260530.

The previous prime is 51630260503. The next prime is 51630260569. The reversal of 51630260531 is 13506203615.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51630260531 - 2¹⁰ = 51630259507 is a prime.

It is a super-2 number, since 2×51630260531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51636260531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25815130265 + 25815130266.

It is an arithmetic number, because the mean of its divisors is an integer number (25815130266).

Almost surely, 2^51630260531 is an apocalyptic number.

51630260531 is a deficient number, since it is larger than the sum of its proper divisors (1).

51630260531 is an equidigital number, since it uses as much as digits as its factorization.

51630260531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 51630260531 in words is "fifty-one billion, six hundred thirty million, two hundred sixty thousand, five hundred thirty-one".