80580613 has 4 divisors (see below), whose sum is σ = 80599788. Its totient is φ = 80561440.

The previous prime is 80580587. The next prime is 80580623. The reversal of 80580613 is 31608508.

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 5116644 + 75463969 = 2262^2 + 8687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80580613 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 not an unprimeable number, because it can be changed into a prime (80580623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256 + ... + 12697.

It is an arithmetic number, because the mean of its divisors is an integer number (20149947).

Almost surely, 2^80580613 is an apocalyptic number.

It is an amenable number.

80580613 is a deficient number, since it is larger than the sum of its proper divisors (19175).

80580613 is a wasteful number, since it uses less digits than its factorization.

80580613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19174.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 80580613 is about 8976.6704852078. The cubic root of 80580613 is about 431.9268369612.

It can be divided in two parts, 805 and 80613, that added together give a palindrome (81418).

The spelling of 80580613 in words is "eighty million, five hundred eighty thousand, six hundred thirteen".