51020552179 has 2 divisors, whose sum is σ = 51020552180. Its totient is φ = 51020552178.

The previous prime is 51020552071. The next prime is 51020552197. The reversal of 51020552179 is 97125502015.

Together with next prime (51020552197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51020552179 is a prime.

It is not a weakly prime, because it can be changed into another prime (51020553179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25510276089 + 25510276090.

It is an arithmetic number, because the mean of its divisors is an integer number (25510276090).

Almost surely, 2^51020552179 is an apocalyptic number.

51020552179 is a deficient number, since it is larger than the sum of its proper divisors (1).

51020552179 is an equidigital number, since it uses as much as digits as its factorization.

51020552179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 51020552179 in words is "fifty-one billion, twenty million, five hundred fifty-two thousand, one hundred seventy-nine".