51055601111 has 2 divisors, whose sum is σ = 51055601112. Its totient is φ = 51055601110.

The previous prime is 51055601017. The next prime is 51055601117. The reversal of 51055601111 is 11110655015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51055601111 - 2³⁴ = 33875731927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51055601117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25527800555 + 25527800556.

It is an arithmetic number, because the mean of its divisors is an integer number (25527800556).

Almost surely, 2^51055601111 is an apocalyptic number.

51055601111 is a deficient number, since it is larger than the sum of its proper divisors (1).

51055601111 is an equidigital number, since it uses as much as digits as its factorization.

51055601111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 51055601111 in words is "fifty-one billion, fifty-five million, six hundred one thousand, one hundred eleven".