71052565 has 16 divisors (see below), whose sum is σ = 86724288. Its totient is φ = 55875456.

The previous prime is 71052551. The next prime is 71052607. The reversal of 71052565 is 56525017.

It is a cyclic number.

It is not a de Polignac number, because 71052565 - 2⁷ = 71052437 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 15 ways as a sum of consecutive naturals, for example, 129622 + ... + 130168.

It is an arithmetic number, because the mean of its divisors is an integer number (5420268).

Almost surely, 2^71052565 is an apocalyptic number.

It is an amenable number.

71052565 is a deficient number, since it is larger than the sum of its proper divisors (15671723).

71052565 is a wasteful number, since it uses less digits than its factorization.

71052565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 71052565 is about 8429.2683549641. The cubic root of 71052565 is about 414.1839385064.

It can be divided in two parts, 71052 and 565, that added together give a palindrome (71617).

The spelling of 71052565 in words is "seventy-one million, fifty-two thousand, five hundred sixty-five".