80527565 has 16 divisors (see below), whose sum is σ = 98313600. Its totient is φ = 63312192.

The previous prime is 80527537. The next prime is 80527583. The reversal of 80527565 is 56572508.

It is a cyclic number.

It is not a de Polignac number, because 80527565 - 2²⁰ = 79478989 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 75224 + ... + 76286.

It is an arithmetic number, because the mean of its divisors is an integer number (6144600).

Almost surely, 2^80527565 is an apocalyptic number.

It is an amenable number.

80527565 is a deficient number, since it is larger than the sum of its proper divisors (17786035).

80527565 is a wasteful number, since it uses less digits than its factorization.

80527565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 80527565 is about 8973.7152283767. The cubic root of 80527565 is about 431.8320338241.

The spelling of 80527565 in words is "eighty million, five hundred twenty-seven thousand, five hundred sixty-five".