12505263585 has 16 divisors (see below), whose sum is σ = 20009895360. Its totient is φ = 6668982720.

The previous prime is 12505263499. The next prime is 12505263587. The reversal of 12505263585 is 58536250521.

It is not a de Polignac number, because 12505263585 - 2¹³ = 12505255393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12505263587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283470 + ... + 324600.

It is an arithmetic number, because the mean of its divisors is an integer number (1250618460).

Almost surely, 2^12505263585 is an apocalyptic number.

12505263585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12505263585 is a deficient number, since it is larger than the sum of its proper divisors (7504631775).

12505263585 is a wasteful number, since it uses less digits than its factorization.

12505263585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61408.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 12505263585 in words is "twelve billion, five hundred five million, two hundred sixty-three thousand, five hundred eighty-five".