82580573 has 4 divisors (see below), whose sum is σ = 82598880. Its totient is φ = 82562268.

The previous prime is 82580521. The next prime is 82580581. The reversal of 82580573 is 37508528.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82580573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82583573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2936 + ... + 13182.

It is an arithmetic number, because the mean of its divisors is an integer number (20649720).

Almost surely, 2^82580573 is an apocalyptic number.

It is an amenable number.

82580573 is a deficient number, since it is larger than the sum of its proper divisors (18307).

82580573 is a wasteful number, since it uses less digits than its factorization.

82580573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18306.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 82580573 is about 9087.3853775440. The cubic root of 82580573 is about 435.4710588288.

The spelling of 82580573 in words is "eighty-two million, five hundred eighty thousand, five hundred seventy-three".