51150661511 has 2 divisors, whose sum is σ = 51150661512. Its totient is φ = 51150661510.

The previous prime is 51150661459. The next prime is 51150661519. The reversal of 51150661511 is 11516605115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51150661511 - 2¹⁴ = 51150645127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51150661519) 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, 25575330755 + 25575330756.

It is an arithmetic number, because the mean of its divisors is an integer number (25575330756).

Almost surely, 2^51150661511 is an apocalyptic number.

51150661511 is a deficient number, since it is larger than the sum of its proper divisors (1).

51150661511 is an equidigital number, since it uses as much as digits as its factorization.

51150661511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 32.

The spelling of 51150661511 in words is "fifty-one billion, one hundred fifty million, six hundred sixty-one thousand, five hundred eleven".