25506660000023 has 2 divisors, whose sum is σ = 25506660000024. Its totient is φ = 25506660000022.

The previous prime is 25506659999959. The next prime is 25506660000043. The reversal of 25506660000023 is 32000006660552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25506660000023 - 2⁶ = 25506659999959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25506660000043) 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, 12753330000011 + 12753330000012.

It is an arithmetic number, because the mean of its divisors is an integer number (12753330000012).

Almost surely, 2^{25506660000023} is an apocalyptic number.

25506660000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

25506660000023 is an equidigital number, since it uses as much as digits as its factorization.

25506660000023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 25506660000023 its reverse (32000006660552), we get a palindrome (57506666660575).

The spelling of 25506660000023 in words is "twenty-five trillion, five hundred six billion, six hundred sixty million, twenty-three", and thus it is an aban number.