26125065563 has 2 divisors, whose sum is σ = 26125065564. Its totient is φ = 26125065562.

The previous prime is 26125065559. The next prime is 26125065611. The reversal of 26125065563 is 36556052162.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26125065563 - 2² = 26125065559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26125065563.

It is not a weakly prime, because it can be changed into another prime (26125065553) 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, 13062532781 + 13062532782.

It is an arithmetic number, because the mean of its divisors is an integer number (13062532782).

Almost surely, 2^26125065563 is an apocalyptic number.

26125065563 is a deficient number, since it is larger than the sum of its proper divisors (1).

26125065563 is an equidigital number, since it uses as much as digits as its factorization.

26125065563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 41.

The spelling of 26125065563 in words is "twenty-six billion, one hundred twenty-five million, sixty-five thousand, five hundred sixty-three".