265387000517 has 2 divisors, whose sum is σ = 265387000518. Its totient is φ = 265387000516.

The previous prime is 265387000481. The next prime is 265387000591. The reversal of 265387000517 is 715000783562.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169059946561 + 96327053956 = 411169^2 + 310366^2 .

It is a cyclic number.

It is not a de Polignac number, because 265387000517 - 2⁸ = 265387000261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265387005517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132693500258 + 132693500259.

It is an arithmetic number, because the mean of its divisors is an integer number (132693500259).

Almost surely, 2^265387000517 is an apocalyptic number.

It is an amenable number.

265387000517 is a deficient number, since it is larger than the sum of its proper divisors (1).

265387000517 is an equidigital number, since it uses as much as digits as its factorization.

265387000517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 265387000517 in words is "two hundred sixty-five billion, three hundred eighty-seven million, five hundred seventeen", and thus it is an aban number.