80052409 has 4 divisors (see below), whose sum is σ = 80070516. Its totient is φ = 80034304.

The previous prime is 80052391. The next prime is 80052437. The reversal of 80052409 is 90425008.

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 51194025 + 28858384 = 7155^2 + 5372^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80052409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80058409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2457 + ... + 12889.

It is an arithmetic number, because the mean of its divisors is an integer number (20017629).

Almost surely, 2^80052409 is an apocalyptic number.

It is an amenable number.

80052409 is a deficient number, since it is larger than the sum of its proper divisors (18107).

80052409 is a wasteful number, since it uses less digits than its factorization.

80052409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18106.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 80052409 is about 8947.2011824928. The cubic root of 80052409 is about 430.9810106064.

The spelling of 80052409 in words is "eighty million, fifty-two thousand, four hundred nine".