12580785 has 32 divisors (see below), whose sum is σ = 25562880. Its totient is φ = 5750784.

The previous prime is 12580783. The next prime is 12580807. The reversal of 12580785 is 58708521.

12580785 is a `hidden beast` number, since 1 + 2 + 580 + 78 + 5 = 666.

It is not a de Polignac number, because 12580785 - 2¹ = 12580783 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12580781) 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, 5712 + ... + 7601.

It is an arithmetic number, because the mean of its divisors is an integer number (798840).

Almost surely, 2^12580785 is an apocalyptic number.

12580785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12580785 is an abundant number, since it is smaller than the sum of its proper divisors (12982095).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12580785 is a wasteful number, since it uses less digits than its factorization.

12580785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13334 (or 13328 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 12580785 is about 3546.9402306777. The cubic root of 12580785 is about 232.5783294870.

The spelling of 12580785 in words is "twelve million, five hundred eighty thousand, seven hundred eighty-five".