2551063291577 has 2 divisors, whose sum is σ = 2551063291578. Its totient is φ = 2551063291576.

The previous prime is 2551063291541. The next prime is 2551063291631. The reversal of 2551063291577 is 7751923601552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1934981153296 + 616082138281 = 1391036^2 + 784909^2 .

It is a cyclic number.

It is not a de Polignac number, because 2551063291577 - 2²² = 2551059097273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2551063291177) 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, 1275531645788 + 1275531645789.

It is an arithmetic number, because the mean of its divisors is an integer number (1275531645789).

Almost surely, 2^{2551063291577} is an apocalyptic number.

It is an amenable number.

2551063291577 is a deficient number, since it is larger than the sum of its proper divisors (1).

2551063291577 is an equidigital number, since it uses as much as digits as its factorization.

2551063291577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3969000, while the sum is 53.

The spelling of 2551063291577 in words is "two trillion, five hundred fifty-one billion, sixty-three million, two hundred ninety-one thousand, five hundred seventy-seven".