80223565 has 4 divisors (see below), whose sum is σ = 96268284. Its totient is φ = 64178848.

The previous prime is 80223557. The next prime is 80223607. The reversal of 80223565 is 56532208.

It is a happy number.

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 52577001 + 27646564 = 7251^2 + 5258^2 .

It is a cyclic number.

It is not a de Polignac number, because 80223565 - 2³ = 80223557 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 8022352 + ... + 8022361.

It is an arithmetic number, because the mean of its divisors is an integer number (24067071).

Almost surely, 2^80223565 is an apocalyptic number.

It is an amenable number.

80223565 is a deficient number, since it is larger than the sum of its proper divisors (16044719).

80223565 is a wasteful number, since it uses less digits than its factorization.

80223565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16044718.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 80223565 is about 8956.7608542374. The cubic root of 80223565 is about 431.2879448514.

The spelling of 80223565 in words is "eighty million, two hundred twenty-three thousand, five hundred sixty-five".