82048561 has 4 divisors (see below), whose sum is σ = 93769792. Its totient is φ = 70327332.

The previous prime is 82048553. The next prime is 82048583. The reversal of 82048561 is 16584028.

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 not a de Polignac number, because 82048561 - 2³ = 82048553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82048501) 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, 5860605 + ... + 5860618.

It is an arithmetic number, because the mean of its divisors is an integer number (23442448).

Almost surely, 2^82048561 is an apocalyptic number.

It is an amenable number.

82048561 is a deficient number, since it is larger than the sum of its proper divisors (11721231).

82048561 is a wasteful number, since it uses less digits than its factorization.

82048561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11721230.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 82048561 is about 9058.0660739476. The cubic root of 82048561 is about 434.5338927771.

The spelling of 82048561 in words is "eighty-two million, forty-eight thousand, five hundred sixty-one".