82545503585 has 4 divisors (see below), whose sum is σ = 99054604308. Its totient is φ = 66036402864.

The previous prime is 82545503561. The next prime is 82545503587. The reversal of 82545503585 is 58530554528.

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 48720408529 + 33825095056 = 220727^2 + 183916^2 .

It is a cyclic number.

It is not a de Polignac number, because 82545503585 - 2⁸ = 82545503329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82545503587) 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, 8254550354 + ... + 8254550363.

It is an arithmetic number, because the mean of its divisors is an integer number (24763651077).

Almost surely, 2^82545503585 is an apocalyptic number.

It is an amenable number.

82545503585 is a deficient number, since it is larger than the sum of its proper divisors (16509100723).

82545503585 is a wasteful number, since it uses less digits than its factorization.

82545503585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16509100722.

The product of its (nonzero) digits is 4800000, while the sum is 50.

The spelling of 82545503585 in words is "eighty-two billion, five hundred forty-five million, five hundred three thousand, five hundred eighty-five".