51355367023577 has 2 divisors, whose sum is σ = 51355367023578. Its totient is φ = 51355367023576.

The previous prime is 51355367023489. The next prime is 51355367023643. The reversal of 51355367023577 is 77532076355315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51296192082496 + 59174941081 = 7162136^2 + 243259^2 .

It is a cyclic number.

It is not a de Polignac number, because 51355367023577 - 2³² = 51351072056281 is a prime.

It is not a weakly prime, because it can be changed into another prime (51355367020577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25677683511788 + 25677683511789.

It is an arithmetic number, because the mean of its divisors is an integer number (25677683511789).

Almost surely, 2^{51355367023577} is an apocalyptic number.

It is an amenable number.

51355367023577 is a deficient number, since it is larger than the sum of its proper divisors (1).

51355367023577 is an equidigital number, since it uses as much as digits as its factorization.

51355367023577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69457500, while the sum is 59.

The spelling of 51355367023577 in words is "fifty-one trillion, three hundred fifty-five billion, three hundred sixty-seven million, twenty-three thousand, five hundred seventy-seven".