80257489 has 4 divisors (see below), whose sum is σ = 86431156. Its totient is φ = 74083824.

The previous prime is 80257483. The next prime is 80257519. The reversal of 80257489 is 98475208.

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 4915089 + 75342400 = 2217^2 + 8680^2 .

It is a cyclic number.

It is not a de Polignac number, because 80257489 - 2¹⁵ = 80224721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80257483) 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, 3086814 + ... + 3086839.

It is an arithmetic number, because the mean of its divisors is an integer number (21607789).

Almost surely, 2^80257489 is an apocalyptic number.

It is an amenable number.

80257489 is a deficient number, since it is larger than the sum of its proper divisors (6173667).

80257489 is a wasteful number, since it uses less digits than its factorization.

80257489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173666.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 80257489 is about 8958.6544190520. The cubic root of 80257489 is about 431.3487289464.

The spelling of 80257489 in words is "eighty million, two hundred fifty-seven thousand, four hundred eighty-nine".