265057136563 has 2 divisors, whose sum is σ = 265057136564. Its totient is φ = 265057136562.

The previous prime is 265057136557. The next prime is 265057136579. The reversal of 265057136563 is 365631750562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 265057136563 - 2²⁹ = 264520265651 is a prime.

It is not a weakly prime, because it can be changed into another prime (265057136543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132528568281 + 132528568282.

It is an arithmetic number, because the mean of its divisors is an integer number (132528568282).

Almost surely, 2^265057136563 is an apocalyptic number.

265057136563 is a deficient number, since it is larger than the sum of its proper divisors (1).

265057136563 is an equidigital number, since it uses as much as digits as its factorization.

265057136563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402000, while the sum is 49.

The spelling of 265057136563 in words is "two hundred sixty-five billion, fifty-seven million, one hundred thirty-six thousand, five hundred sixty-three".