51056056057 has 2 divisors, whose sum is σ = 51056056058. Its totient is φ = 51056056056.

The previous prime is 51056056033. The next prime is 51056056069. The reversal of 51056056057 is 75065065015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38596138681 + 12459917376 = 196459^2 + 111624^2 .

It is a cyclic number.

It is not a de Polignac number, because 51056056057 - 2¹⁵ = 51056023289 is a prime.

It is not a weakly prime, because it can be changed into another prime (51056056357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25528028028 + 25528028029.

It is an arithmetic number, because the mean of its divisors is an integer number (25528028029).

Almost surely, 2^51056056057 is an apocalyptic number.

It is an amenable number.

51056056057 is a deficient number, since it is larger than the sum of its proper divisors (1).

51056056057 is an equidigital number, since it uses as much as digits as its factorization.

51056056057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 51056056057 in words is "fifty-one billion, fifty-six million, fifty-six thousand, fifty-seven".