71032565 has 4 divisors (see below), whose sum is σ = 85239084. Its totient is φ = 56826048.

The previous prime is 71032547. The next prime is 71032597. The reversal of 71032565 is 56523017.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29571844 + 41460721 = 5438^2 + 6439^2 .

It is a cyclic number.

It is not a de Polignac number, because 71032565 - 2⁸ = 71032309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7103252 + ... + 7103261.

It is an arithmetic number, because the mean of its divisors is an integer number (21309771).

Almost surely, 2^71032565 is an apocalyptic number.

It is an amenable number.

71032565 is a deficient number, since it is larger than the sum of its proper divisors (14206519).

71032565 is a wasteful number, since it uses less digits than its factorization.

71032565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14206518.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 71032565 is about 8428.0819288851. The cubic root of 71032565 is about 414.1450731202.

The spelling of 71032565 in words is "seventy-one million, thirty-two thousand, five hundred sixty-five".