25056117677 has 2 divisors, whose sum is σ = 25056117678. Its totient is φ = 25056117676.

The previous prime is 25056117659. The next prime is 25056117707. The reversal of 25056117677 is 77671165052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24270212521 + 785905156 = 155789^2 + 28034^2 .

It is a cyclic number.

It is not a de Polignac number, because 25056117677 - 2¹⁰ = 25056116653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25056117617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12528058838 + 12528058839.

It is an arithmetic number, because the mean of its divisors is an integer number (12528058839).

Almost surely, 2^25056117677 is an apocalyptic number.

It is an amenable number.

25056117677 is a deficient number, since it is larger than the sum of its proper divisors (1).

25056117677 is an equidigital number, since it uses as much as digits as its factorization.

25056117677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 617400, while the sum is 47.

The spelling of 25056117677 in words is "twenty-five billion, fifty-six million, one hundred seventeen thousand, six hundred seventy-seven".