12578125 has 32 divisors (see below), whose sum is σ = 18749952. Its totient is φ = 8250000.

The previous prime is 12578117. The next prime is 12578129. The reversal of 12578125 is 52187521.

12578125 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12578125 - 2³ = 12578117 is a prime.

It is a Duffinian number.

Its product of digits (5600) is a multiple of the sum of its prime divisors (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12578129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 546864 + ... + 546886.

It is an arithmetic number, because the mean of its divisors is an integer number (585936).

Almost surely, 2^12578125 is an apocalyptic number.

It is an amenable number.

12578125 is a deficient number, since it is larger than the sum of its proper divisors (6171827).

12578125 is an frugal number, since it uses more digits than its factorization.

12578125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 35 counting only the distinct ones).

The product of its digits is 5600, while the sum is 31.

The square root of 12578125 is about 3546.5652397778. The cubic root of 12578125 is about 232.5619367113.

It can be divided in two parts, 125 and 78125, that multiplied together give a 10-th power (9765625 = 5¹⁰).

The spelling of 12578125 in words is "twelve million, five hundred seventy-eight thousand, one hundred twenty-five".