80257539 has 8 divisors (see below), whose sum is σ = 112642240. Its totient is φ = 50688936.

The previous prime is 80257537. The next prime is 80257547. The reversal of 80257539 is 93575208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80257539 - 2¹ = 80257537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80257497 and 80257506.

It is not an unprimeable number, because it can be changed into a prime (80257537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703957 + ... + 704070.

It is an arithmetic number, because the mean of its divisors is an integer number (14080280).

Almost surely, 2^80257539 is an apocalyptic number.

80257539 is a deficient number, since it is larger than the sum of its proper divisors (32384701).

80257539 is a wasteful number, since it uses less digits than its factorization.

80257539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408049.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 80257539 is about 8958.6572096492. The cubic root of 80257539 is about 431.3488185224.

The spelling of 80257539 in words is "eighty million, two hundred fifty-seven thousand, five hundred thirty-nine".