82645585 has 32 divisors (see below), whose sum is σ = 115489152. Its totient is φ = 56110080.

The previous prime is 82645583. The next prime is 82645609. The reversal of 82645585 is 58554628.

It is not a de Polignac number, because 82645585 - 2¹ = 82645583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82645583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146514 + ... + 147076.

It is an arithmetic number, because the mean of its divisors is an integer number (3609036).

Almost surely, 2^82645585 is an apocalyptic number.

82645585 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82645585 is a deficient number, since it is larger than the sum of its proper divisors (32843567).

82645585 is a wasteful number, since it uses less digits than its factorization.

82645585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753.

The product of its digits is 384000, while the sum is 43.

The square root of 82645585 is about 9090.9617203022. The cubic root of 82645585 is about 435.5853044979.

The spelling of 82645585 in words is "eighty-two million, six hundred forty-five thousand, five hundred eighty-five".