265005071 has 2 divisors, whose sum is σ = 265005072. Its totient is φ = 265005070.

The previous prime is 265005053. The next prime is 265005073. The reversal of 265005071 is 170500562.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 265005071 - 2¹⁸ = 264742927 is a prime.

Together with 265005073, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 265005071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (265005073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132502535 + 132502536.

It is an arithmetic number, because the mean of its divisors is an integer number (132502536).

Almost surely, 2^265005071 is an apocalyptic number.

265005071 is a deficient number, since it is larger than the sum of its proper divisors (1).

265005071 is an equidigital number, since it uses as much as digits as its factorization.

265005071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 265005071 is about 16278.9763498815. The cubic root of 265005071 is about 642.3199259164.

The spelling of 265005071 in words is "two hundred sixty-five million, five thousand, seventy-one".