25655195670803 has 2 divisors, whose sum is σ = 25655195670804. Its totient is φ = 25655195670802.

The previous prime is 25655195670661. The next prime is 25655195670847. The reversal of 25655195670803 is 30807659155652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25655195670803 - 2¹⁴ = 25655195654419 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25655195670893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12827597835401 + 12827597835402.

It is an arithmetic number, because the mean of its divisors is an integer number (12827597835402).

Almost surely, 2^{25655195670803} is an apocalyptic number.

25655195670803 is a deficient number, since it is larger than the sum of its proper divisors (1).

25655195670803 is an equidigital number, since it uses as much as digits as its factorization.

25655195670803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040000, while the sum is 62.

The spelling of 25655195670803 in words is "twenty-five trillion, six hundred fifty-five billion, one hundred ninety-five million, six hundred seventy thousand, eight hundred three".