51566011051 has 2 divisors, whose sum is σ = 51566011052. Its totient is φ = 51566011050.

The previous prime is 51566010983. The next prime is 51566011061. The reversal of 51566011051 is 15011066515.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51566011051 - 2¹⁷ = 51565879979 is a prime.

It is not a weakly prime, because it can be changed into another prime (51566011061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25783005525 + 25783005526.

It is an arithmetic number, because the mean of its divisors is an integer number (25783005526).

Almost surely, 2^51566011051 is an apocalyptic number.

51566011051 is a deficient number, since it is larger than the sum of its proper divisors (1).

51566011051 is an equidigital number, since it uses as much as digits as its factorization.

51566011051 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 31.

Adding to 51566011051 its reverse (15011066515), we get a palindrome (66577077566).

The spelling of 51566011051 in words is "fifty-one billion, five hundred sixty-six million, eleven thousand, fifty-one".