25666227151 has 2 divisors, whose sum is σ = 25666227152. Its totient is φ = 25666227150.

The previous prime is 25666227127. The next prime is 25666227163. The reversal of 25666227151 is 15172266652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25666227151 - 2¹¹ = 25666225103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25666227098 and 25666227107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25666221151) 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, 12833113575 + 12833113576.

It is an arithmetic number, because the mean of its divisors is an integer number (12833113576).

Almost surely, 2^25666227151 is an apocalyptic number.

25666227151 is a deficient number, since it is larger than the sum of its proper divisors (1).

25666227151 is an equidigital number, since it uses as much as digits as its factorization.

25666227151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The spelling of 25666227151 in words is "twenty-five billion, six hundred sixty-six million, two hundred twenty-seven thousand, one hundred fifty-one".