51061111051 has 2 divisors, whose sum is σ = 51061111052. Its totient is φ = 51061111050.

The previous prime is 51061111037. The next prime is 51061111103. The reversal of 51061111051 is 15011116015.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51061111051 - 2⁵ = 51061111019 is a prime.

It is not a weakly prime, because it can be changed into another prime (51061111151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530555525 + 25530555526.

It is an arithmetic number, because the mean of its divisors is an integer number (25530555526).

Almost surely, 2^51061111051 is an apocalyptic number.

51061111051 is a deficient number, since it is larger than the sum of its proper divisors (1).

51061111051 is an equidigital number, since it uses as much as digits as its factorization.

51061111051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150, while the sum is 22.

Adding to 51061111051 its reverse (15011116015), we get a palindrome (66072227066).

The spelling of 51061111051 in words is "fifty-one billion, sixty-one million, one hundred eleven thousand, fifty-one".